T-5 rebuild

[Calypsocool]

I am thinking about replacing the stock clutch before its completely gone this winter. My case leaks pretty bad and I have ground the gears more then I should have. What is all involved in rebuilding it? What are some good upgrades to do while its apart? Are there different numerical gears I can put in there? I have 3.73's in the rear but I want step up to a 4.10 or maybe 3.90 so can I increase (numerically) the gears in the tranny to increase the overall? I just rebuilt the rear end a year ago and dont want to tear into it for a while. The car is a 91.

[portponies]

You should probably at the very least step up to a 2.95 first gear ratio.

Better yet would be to get a T5 "Z" trans. It is rated for 330 lb ft of torque.

I can rebuild yours with or with-out a gear upgrade. I can also sell you a rebuilt T5z trans.

Let me know if you are interested.

Fritz

[Calypsocool]

I thought 91's came with a world class? Fritz if you want to PM me with prices that would be very helpful, thanks.

[portponies]

T5 101.

All T5's from '85 on up are "World Class" transmissions. This includes the z-spec also. From '85 on though they had upgrades every couple of years to try to keep up with the improved engine performance. So, in stock trim the mid-'90's T5's are the best to get. Any of them from '85 on can be upgraded parts-wise to bring them up to the later model HP and torque rating.

Then of course there are the aftermarket suppliers of internal parts such as Liberty and G-Force. These two examples supply gearsets that will almost double the torque capacity of the T5, but they also come with a pretty good price tag. A good number of people are interested in these as compared to switching to a Tremec TKO or 3550 mainly because you can use your stock bellhousing and driveshaft and it weighs less than the TKO.

Class dissmissed.

Calypsocool - pm'ed.

[Calypsocool]

Class dismissed . . .ok. What would be the benefits of going from a 3.35 to a 2.95 1st gear? Also what other specific upgrades would be recommended to handle say 350 ftlbs? What is specifically different about a t5z?

[Kirk]

Fritz,

How does the 92 T5 rate?

[portponies]

Class dismissed . . .ok. What would be the benefits of going from a 3.35 to a 2.95 1st gear?

The biggest benefit to having the 2.95 first gear are the alloys that the gears themselves are made of. I personally don't think that you'll notice the .4 ratio difference.

Also what other specific upgrades would be recommended to handle say 350 ftlbs?

In a nut shell, a T5z with a good aftermarket shifter..

What is specifically different about a t5z?

The "z" spec trannies are built with a "Cobra" tapered roller bearing joining the input and output shafts together. Where as a non-"z" trans has 15 individual roller (straight) bearings and has a lot more side to side play. The taper bearing will actually keep the whole assembly tighter and this aids in increased torque capabilities.

[Kirk]

Great info here Fritz :thumbs_up

[portponies]

Fritz,

How does the 92 T5 rate?

If it's the original tranny, it's probably a 1352-208. It is rated for 300 lb ft of torque. It will have the 3.35 first gear in it. It was also the first T5 series to get carbon fiber blocking rings.

I would rate it as a keeper. :thumbs_up

[Kirk]

Cool.

Thanks.

[Calypsocool]

Thank you for the info Fritz. I am gonna call around to D&D and Hanlon to look into different parts and I will let you know later this winter.

[portponies]

No problem. Just let me know when you want me to do it.