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Need info on 1988 GL-10

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I looked at a GL-10 tonite thats for sale, I can get it for $400 bucks.  It has a running motor, but a auto trans that doesn't work. He put a tranny in that was the wrong one (it had the 4 speed auto in it) and couldn't get it to work as the tranny he put in had no wiring hookup to the computer so he couldn't plug it in. I want to convert it over to a 5 speed and I need to know if a regular gl tranny will fit the axles and drivelines. I know I will need the flywheel, clutch plate, pressure plate, cable, and foot pedals. I'm guessing the gear ratio is differant also so would need to do a gear swap in the rearend as well.

Am I missing anything?????  What about the ECU can I use the one it has?  or would I need one out of a 5 speed If so would it have to be out os a GL-10 turbo with a 5 speed or would any work?

Edited by Fish-N-Fool

4EAT did not come out until 1989 afaik. You sure it wasn't a 3AT or a 89? Push button 4wd would be 3AT.

You definitely have to match the final drive, check the sticker on your rear diff.. If it has an LSD, it will most likely be 3.7:1. You wouldn't do a gear change, you would replace the pumpkin itself (unless you really hate yourself). But most FT4WD boxes are 3.7:1.

ECU is the same, it's the harness than defines AT vs MT (can be modified). You will likely need the speedo cable as well.

4EAT did not come out until 1989 afaik. You sure it wasn't a 3AT or a 89? Push button 4wd would be 3AT.

 

 

 

Nah.....they came out in 87 in the XT, 88 in the GL-10, and 89 for regular GL turbo (not GL-10)

 

The 3at that has been installed should work if the final drive is correct.  It doesn't need a computer.....just on vacuum line.

Nah.....they came out in 87 in the XT, 88 in the GL-10, and 89 for regular GL turbo (not GL-10)

 

The 3at that has been installed should work if the final drive is correct.  It doesn't need a computer.....just on vacuum line.

 

Dang, schooled me again. :) Confirmed in my 87 xt and 88 ea fsm's, I didn't realize the 4eat was released so soon.

Edited by Ibreakstuff

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