Who has replaced their clutch in their driveway?

Everyone,
My '04 GT is approaching 41,000 miles. In the last couple of weeks the clutch just hasn't felt like it usually does. How long do the stock clutches last? I am a fairly competent shade-tree mechanic, yet I have never replaced a clutch. I have basic bolt-ons that include springs, pulleys, shifter, and a Magnaflow cat-back with catted X. I do not plan on too many other mods for the car. If I am to replace my clutch, based on my set-up and knowing my fiance will be driving the car fairly regularly (needs to maintain similar pedal feel with stock) which is a good clutch to get? I figure I would just get the stock flywheel re-surfaced. Anything else I should change while doing the clutch assuming I will do it in the driveway with the car's four wheels on ramps? FYI, I do take the car to Firebird Raceway down the dragstrip probably once a month or so. Currently, without the Magnaflow catback, I have run a [email protected] mph with a 2.20 60-foot. I can taste the 13's, just not there yet.

I guess my simple question is, how hard and how long does it take to change a clutch yourself? Thanks for any input.
Kevin.
 
Well have fun, it's not too bad if you don't want to replace the pilot bearing. I would have thought you would have gotten more life out of a clutch than that but depends on how you drive. You might want to consider having a new flywheel and pins ready before you pull it. Last time it took me over a week to get new pins because one was broken. Also the last two flywheels that I pulled out had hazing and small cracks appearing. If you want to get this all done in a day that could kill the project to need a new flywheel. As far as brands go I'll let other people throw out ideas, I'm running a king cobra but I've heard some people don't like it and I've only run mine one season so far.
 
its not to bad but the first time will really suck. if you want to i can do it for you and i do only charge a small fee. i live in tempe and can probably get the car done in about 7 hours. i can also maybe get you a good deal on a clutch. hit me up on PM if your interested
 
If you don't have LT's to worry about, then hardest thing is to get to the 3rd bolt on starter. other then that, its pretty straight forword.

Drain trans Fluid, take starter out. take driveshaft out, disconnect clutch cable, unbolt bolts from bellhousing(i think there were 8-13mm bolts. DO NOT use 12pit socket. trust me on this one)), and trans cross member, yank out the trans(its heavy. may want to have buddy or something to help u out, or trans Jack). remove clutch, and flywheel. drink beer, as your now halfway point

Now is good time to inspect rear main. if its leaking, change it. also check your tail shaft seal. install new clutch(you may use new flywheel or reserface one), MAKE SURE TO GET GOOD TOB, pilot bearing, pibit ball thing, and clutch fork(not required. but its cheap enough, and so easy to get to when your there. make sure to grease TOB, and pilot bearing)
now the fun part. align input spline. i found it easier to leave the trans in 5th gear, and turn the outputshaft by hand, which makes input shaft to spin slowly, and when it line up, it'll slip on

once its slipped in, start bolt everything back up

Unless you run in to some snafu, it should be 4 to 5 hr job
 
It's a 5 hour job at the dealer, so it's going to take you 2 full days (if you never done it like myself).

I changed my clutch last weekend and it sucked. Took me 2 full days. I don't have an transmission jack so getting the tranny back (by myself) took a while with 2 jacks. I will never do it again. It's not hard, just time consuming.

I put in a McLeod clutch and centerforce TOB.

One part that sucks is the two top bolts on the bell housing. You need a 3 foot extension with a swivel to get them out. Using many extensions won't work.

When you put the transmission back in, watch out for the wiring harness on top of the bell housing. It wants to get between the bell housing and engine.

Here's the tools I could not do without.

View attachment 470846
socket20xh.webp
 
Hey guys,
thanks for all the responses. It doesn't sound all that hard so I think that I will attempt it. I have a buddy and a tranny jack so that won't be a prob. I even have the 3 foot extension and all the wobbly head sockets starting at 3/8 going to 7/8 including the metric. With the throwout bearing and pilot bearing, are they easy to remove? Don't they usually come in a clutch kit? Any other parts I should change while it is apart? Does Ford sell service manuals for the mustang that identify all the necessary torque specs for the car?

I have heard great things about both the King Cobra and the Spec stage I so deciding might be tough. Does everyone usually just replace the flywheel or get the stock one resurfaced?

I still need to determine if my clutch is going bad. The car when shifted hard will still break loose second gear pretty good and get a quick chip when I hit 3rd hard. It just doesn't feel like it engages the same way as it use to. I have tried the 'pull the pedal up' adjustment but that doesn't seem to do anything. I think I will start collecting parts and see how it goes.

Thanks again for all the responses.
Kevin.
 
I drive mine pretty hard like 98% of us do and I replaced mine a few months ago at 27K. The clutch was about 2/3s wasted. I installed a spec stage 2 with my mechanical buddy in his driveway. It took most of the day to do. Jackin the car up high enough is a pretty time consuming part of it. We had a real hard time getting the D@mn top starter bolt off. Other than that it was pretty smooth.

BTW: I like my spec but the TOB sucks. Rattles from the gitgo
 
00 said:
Hey guys,
thanks for all the responses. It doesn't sound all that hard so I think that I will attempt it. I have a buddy and a tranny jack so that won't be a prob. I even have the 3 foot extension and all the wobbly head sockets starting at 3/8 going to 7/8 including the metric. With the throwout bearing and pilot bearing, are they easy to remove? Don't they usually come in a clutch kit? Any other parts I should change while it is apart? Does Ford sell service manuals for the mustang that identify all the necessary torque specs for the car?

If you have the right tool, and time, its not that hard. Just that Starter bolt and 2 top belhousing bolts are PIA. If you use 12 point socket, you'll likely to strip them bolt(like i did:nonono: ). so be sure to use 6 point on them.
If there is Advanced auto near u, then you ca rent pilot bearing remover. They have great rent-a-tool program. saved my bacon more then once.
As far as torque spec goes, I think it was
Flywheel-60ft-lb
Pressure plate to flywheel-18~22ft-lb
But its been a while. So u wanna ask around. Ask Jullian(blackink00) I think he have service manual, with all the spec
 
I did mine in the carport...sat for two weeks. I had to have help with the two bolts at the top of the bellhousing because I couldn't get my hand in there to start the bolts.

The top starter bolt was what took the most time. The two near the bottom were easy but the top bolt you have to snake your hand around to feel it. To remove it we had about 2 feet of extensions and a swivel and accessed it through the k-member from the front of the engine. We figured that out after fighting with it for 3 hours. We just ran out of time for a days work and couldn't get back to it until the second weekend.

I think I could get a swap done alot quicker if I had to do it again just because I know what to look for.

I have the Spec Stage 1...it feels about stock although I think mine needs adjusting because it engages too close to the floor and I don't have an adjustable quadrant.
 
does anyone know the torque rating for the factory clutch, I think mine is feeling a little worn w/ 50k and all the torque I have now ( see sig) how far over the factory rating am I? with drivetrain loss im around 350-360 fwtq ?? i think using 15-17%
 
Mine is too soft for me. It still grabs OK, but it just feels a little soft when running through the gears. Itll chirp 2nd and sometimes 3rd but the grab is still missing. TOB is chirping too.
 
Here is a writeup I did for replacing a clutch in the 5.0L's...same basic principle. You all have more flywheel bolts to undo though:)

First jack up the car safely and securely on all four corners and the more room underneath the better so you can remove and install items much easier. Proper jack and jack stand placement is key for safety. A friend or two is probably the best way to go about the install. You will find yourself needing more hands than you have pretty quickly.

Go ahead and disconnect the negative side of the battery. Go ahead and remove the shifter (or atleast the handle) so you can drop the transmission without the shifter holding it in due to rubbing. Four bolts hold it to the transmission and two bolts hold the shift lever on the shifter base. Pull up on the shifter using the handle if you choose to remove it completely. It will give you better leverage but be careful when it finally pops loose because you might go flying back or scratch interior pieces with the shifter. I put towels around the console to prevent this. Next I would go under the car and start unbolting your mid-pipe, which is held on by a total of 8 bolts (2 for each point of connection). They can be a pain to remove if they haven’t been removed in a while they can seize to the studs/bolts. Use some wd40 or Liquid Wrench to help with this process. A combination of extensions and a swivel would be a good start to getting to the manifold/h-pipe connections. Make sure before you completely drop the pipe that the 02 sensors are disconnected. You can use a flathead screwdriver to pop off the harness connection. Pull the mid-pipe from underneath the car. Now would be a good time to clean it off from all the road grime. Next I go to remove the driveshaft which is held in by 4 bolts in where you will need a 12 point 12 mm socket or wrench to fit over the bolts perfectly. The driveshaft bolts are commonly very stubborn to get off. If you can get a break-over bar on the bolts then you should be able to break them loose. I use the appropriate wrench and put a hollow bar over it and break them loose that way. It helps on the leverage. When you go to remove the bolts you will need to rotate the driveshaft to get an angle on the bolts. When you find the right angle put the car in gear (take your shifter and temporarily pop on the tranny and stick it in gear) and put on the e-brake to prevent the back tires from turning so you can break the bolts loose. Once you have removed all 4 bolts you are now ready to remove the driveshaft. When you pull the driveshaft out from it’s trans housing do not be surprised if transmission fluid comes out (normal). You can buy the driveshaft “plugs” that will be placed where the driveshaft was inputted or you can use a rubber band and ziploc baggy and rig it up to catch any of the fluid so you don’t loose to much.

Now that the driveshaft is removed you can go ahead and undo any tranny connections that are on the transmission. You need to remove the neutral safety switch (pulls off) and speedo gear (held on by one bolt). Pull them out of the way so they don’t snag on anything. Remove any other connections that you may notice like the clutch cable which is held onto the clutch fork and also held on by a clip (do not loose it). I then start to undo the transmission bellhousing bolts (I remove the tranny with the bellhousing attached). Most of them are 5/8’s bolts with a couple smaller ones near the bottom. Make sure you loosen all the bolts because some go up near the lower intake of the engine and can be accessed thru the engine bay or if you have smaller hands (that I’m not blessed with) you can reach them from the bottom. Your transmission crossmember and bellhousing alignment dowel pins are holding the transmission right now. I next remove the starter, which is held on by 2 bolts, and I don’t undo the connections and just ziptie underneath the car and out of the way. I would go ahead and start bringing a good jack underneath the car accompanied with your buddy to get ready to remove the transmission. Two bottom bolts hold it on and two studs go through the side mounted to the body of the car. Remove all 4 of these with the jack properly supporting the transmission while your doing this. Make sure the jack sits flush and has a good balancer on it to accompany the bulkiness of the transmission. With all the bolts and connections undone you can go ahead and start pulling on the tranny towards the rear of the car as to release the input shaft from the pilot bearing and clutch assembly while also letting the bellhousing coming off the dowel pins. Make sure the engine is supported because it doesn’t have the transmission’s weight to counter the tilt. Another jack would be nice. Put a board to even out the weight distribution over the oil pan. Once the input shaft is clear of the clutch assembly (as not to get damaged) and you have wiggled it loose go ahead and drop the transmission slowly while not tilting it so you don’t loose transmission fluid through the speedo gear hole. Remove the transmission out of the way of the bottom of the car. It would be a good time to clean the transmission, crossmember, and driveshaft at this point. Use some degreaser and some “elbow grease” at your local car wash to help you out. You can clean up the bottom end of the car the same way. Good time to do it right? Check your input shaft bearing retainer and shaft itself for scouring or any other kind of damage. It is a good idea to replace all your clutch assembly parts together. Now you can go ahead and remove your pressure plate/clutch disc. If you want to reuse the pressure plate and disc for some reason. Back the 6 pressure plate bolts off evenly as not to warp the plate or disc. When you loosen it watch out because it is heavier than one would think so be ready to catch it or have your friend hold on to it. Once removed you can check the disc and pressure plate for problems and wear to see what is going on with your car. You can now see the flywheel that is held on by 6 bolts as well. These bolts are on pretty tight and I personally use an impact wrench to remove the bolts. I do them evenly as well to prevent any kind of warping. The flywheel weighs 21 lbs so be ready to catch it as well. Remove the flexplate (goes between bellhousing and block). Once the flywheel is removed and out of the way inspect the teeth on it and condition of the clutch disc mating surface. You may need a new teeth ring gear or you may not. You will want to have your flywheel resurfaced (turned) at your local machine shop. They can charge anywhere from $25-$40 bucks for the resurfacing. It will provide for a nice smooth (unspotted) fresh surface for your new disc and pressure plate to work with. Well worth the money if you consider the negatives of not doing it. Since the flywheel is removed you can now see the rear main seal and pilot bearing. If the rear main seal is not leaking DO NOT touch it because it is doing it’s job. A rear main seal install can be tricky. If you see you need to remove it (leaking) you can use a flathead screwdriver to pinch the seal and remove it. You can use a slide hammer as well. You DO NOT want to scratch the crankshaft at all when removing the seal. If you do you will need to put on a sleeve to prevent it from leaking. So be very careful on the crankshaft end. Some have put a screwdriver on the block side of the seal and pryed it out CAREFULLY to remove it. Once removed (in which ever method you chose) clean up the crankshaft and block area where the seal goes into it and put some oil in there to help the seal to go in smoother. I would go ahead and clean the back of your heads and block while your at it. Simple Green and some nice clean smooth rags will be suffice. To install the new rear main seal you want to take your time with this. Put some oil on the inside ring of the seal where it rides on the crankshaft itself. Install the rear main seal EVENLY. You can use the old rear main seal to tap against it to put the seal in the housing. Tap it in a circle slightly and put it flush with the block. Don’t bottom out the seal. Some like to put silicone on the outside ring of the seal (where it meets the block) – it acts like a bridge to keep the oil away. Don’t put any high-temp silicone on the seal part where it meets the crankshaft because it needs to turn, not like it would stop it from turning.

I would go ahead and inspect the pilot bearing by rubbing your “clean” finger in the hole to see if you feel any scouring or rough edges that could effect the ability for your input shaft to function properly and smoothly. If it seems smooth and visually looks good I would go ahead and keep it in there. If your one of those people that are a “miswell while I’m down here” type person then go ahead and change it out. Put some grease in the pilot bearing hole and get a brass punch the same diameter of the hole. You then stick the punch in the hole and hammer the punch into the grease to remove the bearing hydraulically. The bearing will push out as you use the grease as a displacement. You may need to add grease a couple times as more surface area is revealed and it will eventually come out. You may also use a slide hammer on the pilot bearing as well. Most pilot bearings are pre-greased from the factory but I put some bearing grease (just a bit more) on the inside/outside to help with lubrication. Take the bearing (after taking notice of how the pilot bearing was in previously and install it the same direction). Tap it in a circular motion evenly so it doesn’t become offset. Make it flush with the block as well I believe. You are now ready to reinstall the flywheel. Take the new or used (but resurfaced) flywheel and rotate it so the bolt holes (they are offset) match with the flywheel holes and put in a couple bolts to hold the flywheel up there. Before doing this though I would clean up the crankshaft threads a bit of any oil. Just as well MAKE SURE you clean all the clutch assembly parts well before installing them with some carb or brake cleaner to take off human grease and rust inhibitors. Anyways, once the flywheel is held up there go ahead and get some loc-tite and apply them on the threads of the flywheel bolts. That is all I have needed and I have go no oil leak. Some use thread sealer for extra security from leaks. Use it at your own reasoning. Put all the bolts in with some loc-tite and go ahead and start tightening them in a “star” pattern (evenly). The flywheel bolts need to be torqued to 90ft. lbs using a torque wrench. Make sure you clean off the flywheel of any oil or grease from your hands so it doesn’t effect clutch performance and grab. Next you can go ahead and get your clutch disc ready and I’m hoping you got a clutch alignment tool (10 spline – 1/16th input shaft size) and make sure the clutch disc is facing the correct way. Most will be labeled either ENGINE SIDE or FLYWHEEL SIDE. Put the alignment tool in the clutch disc and stab it into the pilot bearing. It may support itself. Get your buddy to hold the input shaft as evenly as he can while you take the pressure plate and set it on the flywheel alignment dowel pins (you need those alignment dowel pins to align and balance the pressure plate properly). The pressure plate will sit on the pins and hold itself. Now get your 6 pressure plate bolts and start threading them in. Go ahead and tighten the pressure plate bolts in a star pattern (evenly and go thru it a few times so you don’t warp the plate). While it is being tightened have your friend have the clutch alignment tool centered for best performance. Torque the pressure plate bolts to 24 ft. lbs (most clutch manufacturer’s recommend that). It probably wouldn’t hurt to put a bit of loc-tite on those bolts but it isn’t completely necessary. You know have the clutch assembly put together. Remove the clutch alignment tool.

Go back to your transmission and check your throwout bearing (TOB) for wear but I would suggest replacing it anyways because it is fairly cheap. Pay attention to how the old one is installed on your retainer shaft. Remove it off the clips and install the new one and check to see if it rides smoothly and turns. You can do this by moving the clutch fork (natural movement) up and down the shaft. Put some high-temp grease on the throwout bearing where it mates against the pressure plate forks. A tip: The “fat-end” of the throwout bearing goes against the pressure plate teeth. You are now ready to install the transmission. Put it on the jack for support and get your buddy to help you jack it up there. Keep in mind that the input shaft on your transmission has to slide in smoothly into the input shaft (the job of the clutch alignment tool). You may need to spin the input shaft so it will “spline” into the disc. As you are getting the spline to line up you need to make sure the bellhousing alignment dowel pins are still in place and that the bellhousing slides over them which will help align everything properly. Go ahead and install the bellhousing and transmission bolts and tighten them up. Now to go back to the transmission install. If it doesn’t “pop” in you need to check for any clearance issues or objects in the way. You should not have to “pull” the transmission on with any bolts…so be mindful of that. Tighten all the bolts down tight so they won’t come loose. Start reconnecting the clutch cable with the clip and onto the clutch fork. Reinstall the speedo gear (a good time to replace it by the way if it is all chewed up) and the neutral safety switch. It would be a good idea to go ahead and put on the crossmember to hold up the transmission and then remove the jack from underneath the car. You may now get ready to install your driveshaft. Pull your fluid plug or ziploc bag away and slide the driveshaft splines into the transmission and start threading in the driveshaft bolts. Put loc-tite on them because you definitely don’t want them bolts to come loose. Torque them down to 100 ft. lbs. Go ahead and put on the mid-pipe and check for any kind of wires or connections that might melt on the exhaust pipes. Fix it (zipties work wonders). Plug in your 02 sensors. Do a quick visual check underneath the car for anything loose or not needed. Go inside your car and reinstall your shifter. Clean the shifter mounting area with a gasket scraper of the old silicone or gasket being careful not to get any in your tranny. Lay down a bead of high-temp silicone around the mounting area and bolt the shifter down (4 bolts) and reinstall the shifter lever/cover/and knob after your sure you got the stop bolts and shifter shifting properly. Just as well make sure the cover is installed around the shifter to keep dirt out of your interior and road noise down. Finally reconnect the battery and clean-up.

The install is now done but when aftermarket pieces are applied you will need to adjust where the clutch engages and disengages to your liking. There are aftermarket pieces like clutch cable firewall adjusters, adjustable clutch cables (you adjust at the clutch fork), and aftermarket quadrants from maximum motorsports, UPR, Steeda, etc. If you use a firewall clutch cable adjuster you can turn it counterclockwise and make the clutch pedal grab closer to the floor. If you turn it counterclockwise it will raise the pedal grab higher up. Replacing the stock plastic quadrant is a good idea and can soften up your pedal as well with the feel. I have seen and learned from personal experience that an OEM non-adjustable cable with a firewall adjuster is a great combo to have and keeps the pedal feel softer than what it could be.

Follow proper break-in procedure by being easy on the car for the first 400-500 miles to properly seat everything.
 
i swapped from a auto to a t45 in my driveway in 2 days.... it took that long cause i was waiting for my flywheel. bolting everything up took only about a hour and a half, if that. do it, its not bad. deffenitally cheaper then a shop too.