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T5 Trans Question

9K views 40 replies 6 participants last post by  big gear head 
#1 ·
there's a guy with two T5 trannys. he said one is "locked up" and the other is rebuildable but needs synchros. he wants $100 for both. so i'm going out there this sat to buy them. i'm not sure if they are WC or NWC though. i told him to check the bearing plugs but he says that they are not visible and sent me this pic and said both trannys look the same. he can't find an ID tag either. the number on the case of one trans is 13-51-097-901. he says
"One came from a 89 S15 GMC, and the other one came from a older model s10"
. i'm going to use one of them to replace the crappy 3sp in my 62 chevy PU. my question is: since i can't see the bearing plug, how do i tell if they are WC or NWC ? and since they don't have the ID tag how do i determine the gearing ratios? regardless i figure for $50/ea i can't go wrong and my truck has the orig 235six so a WC trans is probably overkill anyway.
 

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#28 ·
world class or non-world class makes no difference. The difference is the world class is newer and uses better syncos.

I have run both the T5 world class and T5 non world class in my drag car and both did just fine.

what matters is the T5 came from a V8. The spline count on v8 trans are fine and the V6 course. something like 23 splines on the V8 and 10 on the V6. Look at the trans input shaft and count the teeth to determine what style it is (v8 or V6)

furthermore, if you plan to install this in a truck then be careful to get a transmission with the shifter in the right position. I doubt the T5 car shifter will be in the right place for a truck. I think you need a T5 from a C10 truck that had a V8.
 
#29 ·
ok, that guy with the T5 was a *******. he tried to pawn it off as a WC which it wasn't. plus it was a high miles trans and i was worried that it would not hold up. so today i contacted a another guy who has two T5s. one is from a 96 S10 that he says was his truck and the other is from an older S10 and he knows nothing about it. here are my questions;

the newer T5 has a ford bolt pattern so it won't work and also has an electronic speedo. the older T5 might work but could need to be rebuilt. can the housings be swapped on these trannys so that i can have the good internals inside the older trans? also, i recently tried to take off the top-cover from a T5 but couldn't look inside because the shifter rod was pinned to the mechanism not allowing me to slide the cover off. what's the trick?
 
#30 ·
You have to remove the shift block from the end of the shaft and remove the tail housing before you can remove the cover. All WC parts will fit in any WC case. If you have a WC case with the Chevy bolt pattern you can take the parts from the WC case with the Ford bolt pattern and put them in the other case.
 
#31 ·
I doubt the S10 will have a V8 T5, since S10's didn't come with V8's.

again, WC or NWC makes no difference in strength. The later models are called WC and use better syncos but have the same torque capacity.

What you need is a T5 that was behind a V8 and not a V6. You can tell by the input spline count (V8 are fine and V6 are course).
 
#33 ·
big gear head said:
You have to remove the shift block from the end of the shaft and remove the tail housing before you can remove the cover. All WC parts will fit in any WC case. If you have a WC case with the Chevy bolt pattern you can take the parts from the WC case with the Ford bolt pattern and put them in the other case.
thanks!

again, WC or NWC makes no difference in strength. The later models are called WC and use better syncos but have the same torque capacity.
THANKS!
 
#35 ·
is there an adapter that can be used on a ford bolt pattern, S10, T5 that will allow installation on my 235 chevy?

my problem is finding a good S10 trans from a pre 93, V6. if i could get an adapter, i'd just drive sans a speedo and put MPH markings on a tach.
 
#36 ·
I can't imagine not finding the correct pattern, but there's more to it than that, anyway. I'm not sure how much or how far you've gotten into the nuts and bolts of this, but in any event, I hope these links will give you what you need:

http://www.inliners.org/Jack/t5_page.html Inliners tech web page for T5 transmissions

http://www.moderndriveline.com/ Modern Driveline's home page with T5 tech links

http://www.stovebolt.com/techtips/t5tranny.htm Stovebolt.com's web page for T5 transmissions

http://www.garage-scene.com/t5-into-ag-body/ Garage Scene web page - great T5 identification information

http://www.fordmuscle.com/archives/2000/09/t5swap/index.php Ford Muscle's T5 web page

http://pomoforacing.com/tech/T5Rebuild2002.pdf PoMoFoRacing tech web page link on rebuilding a T5 transmission

http://www.5speeds.com/t5/index.html 5speeds.com

http://www.moderndriveline.com/Technical_Bits/t5_history.htm Modern Driveline

http://www.jalopyjournal.com/forum/showthread.php?t=169265 HAMB w/BUNCH of Links

http://www.flatheadv8.org/t5-swap.htm

Good luck!
 
#39 ·
big gear head said:
You have to remove the shift block from the end of the shaft and remove the tail housing before you can remove the cover. All WC parts will fit in any WC case. If you have a WC case with the Chevy bolt pattern you can take the parts from the WC case with the Ford bolt pattern and put them in the other case.
that would be fine but finding a WC Chevy bolt pattern is not easy.
 
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