8.8 clutch pack rebuild

86bluecobra · Apr 7, 2007

Ok I have Ford's rebuild kit. It has all the schims and clutch's I need. Now the problem or question I have is about the clutch gauge assemble tool they tell you to use. They say for High Torque 8.8's you need a 1.3 inch assemble and for non high torque (which I think the mustangs have because they do not have the 7/8 pinion shaft they have the 3/4 inch one) is a 1.250.
1) How exactly do I mesure this without this tool? Just stack them and measure with vernier? Is there some load that has put on them to measure?

2) I have heard guys talk about installing an extra clutch in them. Is this a good idea?

Daggar · Apr 7, 2007

Hmmmm... you've lost me on the measuring tool (shoot me). Presoak the clutches (in friction modifier) and load them clutch, spacer, clutch, spacer, etc... all the way across. Use the best of your old clutches as your extra. Pack em all in there and replace the S-spring. Don't forget to put friction modifier in the diff.

86bluecobra · Apr 7, 2007

Daggar said:
Presoak the clutches (in friction modifier) and load them clutch, spacer, clutch, spacer, etc... all the way across. Use the best of your old clutches as your extra. Pack em all in there and replace the S-spring. Don't forget to put friction modifier in the diff.

Almost looks like the instructions say to use 2 clutchs to every 1 spacer. Does this seem right?

Daggar said:
Use the best of your old clutches as your extra.

So it is a good idea to install more clutch's to tighten it up? Or just use a bigger schim on the end.

Daggar · Apr 7, 2007

http://www.redpulsar.us/~coldfusion/tlok.html

Should explain everything, including measuring the pack.

86bluecobra · Apr 7, 2007

Daggar said:
http://www.redpulsar.us/~coldfusion/tlok.html

Should explain everything, including measuring the pack.

thank you sir. I went and put the clutch's in the friction modifier. I think this might be a few day job because i want a fird racing rear end cover/girdle for the bearings.

86bluecobra · Apr 7, 2007

man my fingers stink like my rear end now. I have to remember that playing with my rear end stinks.

Daggar · Apr 7, 2007

Yeah... lol. 90W gear oil stinks to high heaven. Don't get it on your clothes and wear latex gloves if you can. Don't get the stuff in your eyes either. I'm not an avid wearer of safety-glasses but rear end work has me wearing them every time.

JChalfan · Apr 7, 2007

86bluecobra said:
man my fingers stink like my rear end now. I have to remember that playing with my rear end stinks.

Gross dude.

I've never been able to fit extra clutches in either a 7.5 or 8.8. I've heard it works, but I couldn't get it to work.

Jeff

Aryan15 · Apr 7, 2007

I measured the factory stack with calipers, and then assembled the new pack to equal the same thickness. The clutches weren't that worn down.

86bluecobra · Apr 7, 2007

well the clutch's are soaking in friction modifier. They will sit like that for the night.

RYC CUKR · Apr 8, 2007

Basically when you add the extra clutch you remove one of the steels. I think the factory stacking is steel-clutch-steel-clutch-steel-clutch-steel. The alternate method is clutch-steel-clutch-steel-clutch-steel-clutch. plus whatever shims you need. I didn't use a clutch gauge assembly tool. I ended up not being able to use any shims cause I couldn't get the spider gears back in with even one of the thinnest shims in on either side. Basically getting it back together was a try to assemble it with a certain shim set up and if it wouldn't go back together move down to the next smallest shim set up until the spider gears would roll back in. Don't know if that is the approved method but it worked for me.

86bluecobra · Apr 8, 2007

RYC CUKR said:
Basically when you add the extra clutch you remove one of the steels. I think the factory stacking is steel-clutch-steel-clutch-steel-clutch-steel. The alternate method is clutch-steel-clutch-steel-clutch-steel-clutch. plus whatever shims you need.

The factory set up is Shim, Friction, Steel, Steel, Friction, Steel, Steel, Friction, Side Gear

The modded is Shim, Friction, Steel, Friction, Steel, Friction, Steel, Friction, Side Gear.

Or atleast this is what I have read. Since the modded has one less thing to put in I would guess that I am going to have to use a larger shim.

RYC CUKR · Apr 8, 2007

Thats the right set up that you have there. Its been awhile since I messed with mine.

Actually you will end up using a smaller shim, in my case no shim, since you are replacing on of the steels with a thicker friction disc. When I did mine even with the smallest shim in I couldn't roll the spider gears and side gears back in. It was just too tight. With no shims it went together and I haven't had any probs with it.

86bluecobra · Apr 8, 2007

RYC CUKR said:
Thats the right set up that you have there. Its been awhile since I messed with mine.

Actually you will end up using a smaller shim, in my case no shim, since you are replacing on of the steels with a thicker friction disc. When I did mine even with the smallest shim in I couldn't roll the spider gears and side gears back in. It was just too tight. With no shims it went together and I haven't had any probs with it.

I guess I'm going to have to roll both spider gears back in at the same time.

86bluecobra · Apr 9, 2007

Ok so I have both spider gears in but there seems to be a little bit of movement between the spider gears. Is this normal or should I get them to fit really tightly. I could schim one side. That being said It looks like it will be near impossible at this point to get the s spring in. it is very tight for it right now.

86bluecobra · Apr 9, 2007

Well I got it all together I tell you that S Spring is a major pain to get into the middle of the 2 gears.

RYC CUKR · Apr 10, 2007

86bluecobra said:
Well I got it all together I tell you that S Spring is a major pain to get into the middle of the 2 gears.

BFH and a block of wood is how I got mine back in.

86bluecobra · Apr 10, 2007

RYC CUKR said:
BFH and a block of wood is how I got mine back in.

I used a set of water pump pliers. I squeezed the back side of the spring as much as i couls which in turn squeezed the front of the spring anbout half as much and I was able to just wiggle it in the tap it with a hammer.

Modular2v · Apr 10, 2007

just buy an eaton!LOL i loved mine in my 03

86bluecobra · Apr 10, 2007

Modular2v said:
just buy an eaton!LOL i loved mine in my 03

well oneday when my rearend finally gives up I will. But it will have to be catistrophic failure before I do that.

8.8 clutch pack rebuild

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