94 4l60e- 98 4l60e conversion

[CRF450R]

So I have a 2wd 4l60e with bad 3/4 clutch pack's I've had some weird stuff going on with my 4l60e in my 98 Z71. I've wanted to rebuild a 4l60e for long time I've bin watching Transmission bench videos he's very detailed I 100% certain I can do this. Can I just swap out the in/out put shaft out for a 4wd one get a 4wd rear housing then just swap the internal wirring harness and shift solenoids. I was to build this trans as a spair as I know my 98 has 350+ km on its original 4l60e and every once in a while it hickups.

 

[Roadrunner]

For the most part everything swaps around fairly easily. There are a number of differences between 94 and 98 though. Off the top of my head the 98 got a 2 piece case and larger input shaft. Where your going to run into problems is the 94 does not have pwm torque converter lock up. I think the valve body and pump are different for the early models. I cant remember for sure or not if you can use the 98 cases with the 94 valve body and pump but I dont think so. The tail shaft and 4wd adapter is a straight forward swap.

If I have to do it again on my truck I will be going with a 4l80e next time around for sure. The build itself was fairly easy. Inspecting and cleaning the parts up on the other hand was terrible. Also be ready to buy/make and number of specialty tools. Transmission fixture, clutch spring compressor, teflon seal installer/resize tool, various bushing/seal drivers ect.

 

[CRF450R]

For the most part everything swaps around fairly easily. There are a number of differences between 94 and 98 though. Off the top of my head the 98 got a 2 piece case and larger input shaft. Where your going to run into problems is the 94 does not have pwm torque converter lock up. I think the valve body and pump are different for the early models. I cant remember for sure or not if you can use the 98 cases with the 94 valve body and pump but I dont think so. The tail shaft and 4wd adapter is a straight forward swap.

If I have to do it again on my truck I will be going with a 4l80e next time around for sure. The build itself was fairly easy. Inspecting and cleaning the parts up on the other hand was terrible. Also be ready to buy/make and number of specialty tools. Transmission fixture, clutch spring compressor, teflon seal installer/resize tool, various bushing/seal drivers ect.

I like my 4l60e's I think I'm gonna make a wanted add for a blown 98 4l60e or for whatever other year is compatible. At some point I want to build up a 4l60e full of Sonnax parts just cause I feel like it they seem like a easy transmission to work on parts are fairly cheap and we'll I've had great luck with them and my truck has a 4l60 so I would like to learn how to rebuild them and work on them. Though I have a very good transmission guy in Saskatoon he's bin in buisness for like 45 years and told me $1500 (transmission removed by me) and he would freshin my 4l60 up and beef it up a bit with a three year warranty so I'm wondering if I should even bother building my own transmission. I watch alot of transmission rebuild video's and rebuilding automatic transmissions is something I'm interested in I'm willing too buy the tools I figured 4l60e's would be a good starting point to learn from I would then like too start working on Alison automatics.

 

[Jesse_Wenting]

This is something I'm looking at doing pretty soon too. Anyone know if a 4L60e from a 96 will direct fit into a 94 body? engine from the 96 will be moving to the 94 as well

 

[Roadrunner]

It will fit but your going to need to use the computer and wiring harness for the 96.

 

[Yuta]

From what I understand 93 & 94 are one off years and don't swap with the other years. I have a 93 and was lucky to find another 93. I happen to own the GM factory shop manuals for the 4L60 & 4L60e and have watched a ton of videos and still will get a trany guy to do It. There are some 93/94's at Amigos last time I looked. I'm in Saskatoon. Who's your trans guy in Saskatoon?

 

[PlayingWithTBI]

Here's a thread on a similar project. If you scroll down, there's a link to Sonnax showing the difference between the valve bodies through the years.

http://www.gearhead-efi.com/Fuel-In...p?8655-7427-4l60e-questions&p=80595#post80595