How much trouble to rebuild a t5?

90_Red_LX

Member
Sep 29, 2003
668
5
19
Asheboro, NC
Debating on whether to upgrade my tranny or just tear it apart and fix the synchros or put a stronger gear set in it. I'm pretty mechanically inclined, dad owns a professional shop, then I go to school for machining should I need something from that area. Would I still be batting out of my league? If the thing came apart a year from now I wouldn't really care I'll be working full time by then, but with the 2nd gear synchro well on her way out the door, and 3rd starting to act up a little I believe her days are numbered.
 
I've done mine in my living room. One of the easiest manual trans to rebuild and a great way to cut your teeth on one is to just download the manual and tear into it.
 
I may get to it then. I'm fixing to pretty much retire the car for nice weekends only since once it gets cold, the salts gonna hit the roads and the jeeps gonna get full time duty. Going to the bottle around new years also, so somethings gonna give, and the tranny is the weak link in my drivetrain.
 
Rebuild kits are normally $100-200 depending on how complete a kit. Some just have wearable items while others have bearings as well.

They DO NOT replace hard parts like gears however, so if you have a grinding 2nd gear, a rebuild kit may be all you need but you migth find the gear and synchro ring are bad as well and those are $35-80 each right there
 
See http://www.ttcautomotive.com/English/onlineorder/product.asp to download a FREE service manual for T5 or Tremec 3550/TKO
You will need the Adobe Acrobat viewer which is also a free download – http://www.adobe.com/products/acrobat/readstep2.html

See http://www.hanlonmotorsports.com/ or http://www.ddperformance.com for parts

A T5 rebuild kit with syncros, bearings and other small parts costs about $160. It does not include any gears or shafts.

http://www.hanlonmotorsports.com/ also has a video on how to rebuild your T5 or Tremec. It costs about $20, and is worth every penny of it.

I did a Tremec 3550 rebuild, and it wasn't that difficult. The video was an immense help, and I would recommend viewing it. At $20, it will give you an opportunity to look and decide for yourself if you think that it is something you want to try to do.
 
a lot of the time its not just the friction clutches wearing themselves, its the "dog teeth" on the slider rings wear and that causes the grinding noise when you try to shift quickly or at high RPM. you may have to replace your 1-2 slider along with new clutches/bearings/etc. i believe the sliders cost 80$ ... but i cant remember for sure. tear it open and inspect everything to know for sure.


AND REMEMBER TO BREAK IT IN AFTER YOU REBUILD IT!!! my first trans rebuild ended in disaster because i went to thrashing it right away.
 
I completely rebuilt one including new gears. I went with the upgraded alloy gears and the T5-Z ratio. I got my parts from Astro Performance and just used the T5 rebuild manual. It was actually quite simple just took some time. No real special tools required except for a shop press. As far as the slider rings, I had some machine work on mine to make them easier to move.
 
I completely rebuilt one including new gears. I went with the upgraded alloy gears and the T5-Z ratio. I got my parts from Astro Performance and just used the T5 rebuild manual. It was actually quite simple just took some time. No real special tools required except for a shop press. As far as the slider rings, I had some machine work on mine to make them easier to move.

How much did that run you? Will the tranny hold a lot more power? As far as ratios if anything taller gears would be a lot better for the car or put a less aggressive rear end gear in it since 4th gear is all but done in the 1/4 now. If I go to spray it'll be in 5th quick.