Originally Posted by
ymaha05
I have a question about hooking up a 4l60e to my 89 k1500 transfer case. Will I have any issues or will it bolt right up? Or would finding a 2000+ transfer case be a better idea and would my drive shaft still work it I have to swap Trans cases?
From what I have been told by the Brendan Patton(the guy who flashed my PCM on LT1 swap) you will need a Vehicle Speed Sensor(VSS) from the tail shaft of the transfer case. I think 93 and up had them. If you don't, you will have to either buy a different T-case with the sensor, or buy an aftermarket speed sensor. The reason being is that the 4L60E is an electronic transmission and is shifted by the PCM. Without the pulses coming from the VSS, the PCM doesn't know when the vehicle is moving or stationary.
When using an older trans that shifts by vacuum modulator, the VSS is un-necessary.
As for bolting up, it may. You may be better suited to finding a Tcase from a 93 to 98. That will have the VSS and should bolt up to the 4L60E. Mine did and I'm running a 99 4L60E out of a Caddy Escalade originally powered by the traditional small block Chevy 350 with Vortec injection. I still retain the original T-case.
Last edited by Mickeymotormount; 02-14-2013 at 05:17 PM.
'93 Chevy 1500 4X4 ECLB with a '99 Silverado LQ4 6.0 and '99 Escalade 4L60E. SOLD IT!!
New toy: 2001 2500 HD 4X4 Extended Cab Long Bed
John
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