I bolted my drivetrain together last night to get ready and set in the car for mock-up. Everything bolted well, but I noticed that the whole thing bound up. Like the pilot shaft bound into the back of the crank. Nothing would spin. Loosened the bolts just a bit, and all seems good. How to I determine how long the that pilot shaft is supposed to be or why it might be binding? Posted from the TJJ App for iPhone & iPad
The T-5 is generally 3/8ths inch longer than a Muncie/saginaw etc. The added length is in the pilot...I just cut off 3/8ths inch from the tip of the input shaft at the pilot. Bevel the end again to slide into the pilot bushing/bearing/adapter.
You didn't say which T5 you're using. If it's an Fbody V6 or V8, the input shaft is the correct length. If S-10, it should be measured. With the bellhousing on the engine, put a straight edge across the trans mounting surface, measure the depth to the pilot bushing/bearing, and add the thickness of the bushing/bearing. Also, if S-10 and you haven't shortened the input bearing retainer you'll probably need to do that as well as verifying the length of the splines to ***ure proper clutch release. Bob
I had to cut my shaft twice, so I don't have an actual measurement. I also had to lengthen the splines on the input shaft to get it to disengage.
Check my thread "T5(S10) transmission install in 1929 coupe".. I have pics of modifications to the S10 trans and side by side comparison to Saginaw 3 speed....
I never had an issue with the pilot shaft. I did have an issue with the front bearing retainer binding against the pressure plate. Weather using a traditional or hydraulice T/O bearing, you'll need to trim around .750" from the length of where the T/O bearing rides. Good luck!
Take all this and condense: S10 T5 input shaft is longer than standard GM input. If your T5 is out of Camaro/Firebird - something is wrong. If your T5 is out of an S10, you may need to shorten the pilot and front bearing retainer while lengthening the splines. Several good threads on here discussing this.
Just because it hasnt been said on this thread I will say it... the T5 ****** was only installed in V8s behind a 305 in the GM line, and the 302 in Ford. From what I have read the ratings vary by source but they are only good to high 200 hp and torque. Obviously weight of the vehicle that its going in is also a factor, and the size of tires you are running. I built a 383 and put a T5 with normal street tires on my 54 pickup and I haven't had any issues as of yet, but I am aware that its the weak link of my setup and drive accordingly. As always, your mileage may vary. Good luck!
The "...only good to high 200 hp and torque." is not accurate. There are various ratings of various T5s and all are 100,000 mile ratings, not instantaneous shock ratings. T5 are not made out of gl***. Some are stronger than others and if going behind a V8, I would strongly recommend starting with the T5 from behind a V8 originally, preferably a later WC unit.
Manufacturer torque ratings ARE based on achieving some level of durability. The number is not the maximum the trans can tolerate. The T-5 was made inb quite a few different configurations, each having a different capability. Depending on how the car is driven a weak trans can last well behind a powerful engine, or a strong trans can be broken by a relatively weak engine.
The advantage of doing it this way is that you can easily swap a replacement trans in. The disadvantage of doing it this way is that it's really challenging to space it that small a distance. Once you lose the input bearing retainer register, you lose concentricity and you'll eat your input bearing. If you do it with a fabricated plate, it needs to have both a male and female register to marry the plate to the bellhousing and the trans to the plate. If you do it any other way, you're asking for trouble.
Do you have a pic of the transmission or the tag on the side should give us an idea of the transmission that you are using. Jay
S**** Metal 48's thread on how to swap an s10 t5 to gm bell: T5(S10) transmission install in 1929 coupe Hamilton Intake's adapter for an S10 t5 to gm bell:s10 t5 swap adapter <FIELDSET cl***=fieldset><LEGEND>Attached Thumbnails</LEGEND> </FIELDSET>
It's a T5 from a S10. I read a few of the tech articles and got it squared away. Thanks! Posted from the TJJ App for iPhone & iPad
<FIELDSET cl***=fieldset><LEGEND>Attached Thumbnails</LEGEND> </FIELDSET> Get your bird seed in a new small metal trash can otherwise the mice will get in those bags.
My next item is an updated shifter base. I want the 2-hole base, not the thread-on S10 one. Posted from the TJJ App for iPhone & iPad
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