I've read in multiple posts for people doing engine swaps that they can use their 4T40-E for up to 300ft-lb of tq. Well in looking up info on the tranny in my service manual for someone i found that it actually isnt true. According to the service manual the maximum engine torque is only 200 ft-lb. Just thought eveyone might want to know.
Also incase your interested the gear ratios are: 1st: 2.960:1, 2nd: 1.626:1, 3rd: 1.000:1, 4th: 0.681:1 and Reverse: 2.143:1



"Official Jewish J-Body"

There are a LOT of people running more than 200ft-lb through the trannies.





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i know i just thought i would let everyone know what GM feels. Thats all



"Official Jewish J-Body"

the 3400 puts out more than 200 pounds of torque

does it use the 4T40-E, i thought it used a different one



"Official Jewish J-Body"

yes it does use the 4T40E, though now that I think of it, it may be 4L40E,

Someone correct me.


<img src=http://img.photobucket.com/albums/v502/brad_sk88/NewSig.jpg>

no, 4L40E is a rear-drive trans...

T = transverse
L = longitudinal

consider yourself corrected

but i didnt know that either so its all good