Tranny max load - Transmission Forum

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Tranny max load
Thursday, March 31, 2005 1:19 PM
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



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Re: Tranny max load
Thursday, March 31, 2005 1:31 PM
There are a LOT of people running more than 200ft-lb through the trannies.





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Re: Tranny max load
Thursday, March 31, 2005 1:33 PM
i know i just thought i would let everyone know what GM feels. Thats all



"Official Jewish J-Body"
Re: Tranny max load
Thursday, March 31, 2005 1:43 PM
the 3400 puts out more than 200 pounds of torque







Re: Tranny max load
Thursday, March 31, 2005 1:51 PM
does it use the 4T40-E, i thought it used a different one



"Official Jewish J-Body"
Re: Tranny max load
Thursday, March 31, 2005 6:13 PM
yes it does use the 4T40E, though now that I think of it, it may be 4L40E,

Someone correct me.


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Re: Tranny max load
Thursday, March 31, 2005 7:36 PM
no, 4L40E is a rear-drive trans...

T = transverse
L = longitudinal








Re: Tranny max load
Thursday, March 31, 2005 11:19 PM
consider yourself corrected

but i didnt know that either so its all good



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