73-87 Chevy _ GMC Trucks > Engine/Drivetrain
Tremac tkx
Swampyankee74:
Has anyone installed a tremac tkx in these trucks? Looks to me like the transmission cross member would have to slide backwards about 1-3/8". But not sure if the height of the cross member is correct. Also I have a low hump truck. Looking to put it in a 74 gmc c15. Looking forward to any info, pros or cons
Captkaos:
I havent but as with any transmission swap that doesnt match the factory offerings you will have to adjust the trans crossmember to fit. As for the height, you need to verify this as you generally want it to be 2.5-3 degrees down and the axle yoke 2.5-3 degrees up.
A 4L80E will fit under a low tunnel trans so if it doesn't fit we sell an uncut transmission tunnel cover. You would just need to cut the floor tunnel accordingly and bolt it in.
Swampyankee74:
Thank you capt!!
Swampyankee74:
Just ordered a tremac tkx close ratio with 2.28 first gear and .68 overdrive from sst transmission out of Tennessee. Sst was very helpful matching the gearing to the truck. Hopefully all goes well. I'll keep you guys posted on the install
Swampyankee74:
Correction 2.87 first gear
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