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Curious if anyone else had this issue....

1994 GMC Sierra SLE K1500 with 4L60E transmission... What I have going on is that when I cold start my truck, it shifts fine from Park to Reverse and or Drive with no issues... It shifts perfectly fine while driving... I would stop and leave it running and place it in Park and get out... Or...
- 94GMCK1500
- Thread
- Jan 1, 2024
- Replies: 45
- Forum: Transmissions
Little help please...

I have a 94 GMC Sierra SLE K1500 with 5.7 liter... I'm asking what is a fair market value on buying a used 14-bolt 3:73 geared 9.5 inch ring gear posi-tract differential ? Appreciate it and thank you...
- 94GMCK1500
- Thread
- Dec 1, 2023
- Replies: 11
- Forum: Axles + Brakes
Not sure anymore...

1994 GMC Sierra K1500... When I start the truck and put in gear I can power brake with spinning the tires... Drive it down the road and stop, take off and it bogs... Power brake it, it bogs... Shut the truck off, start it again and repeat process with same outcome... I've replaced the ignition...
- 94GMCK1500
- Thread
- Feb 28, 2023
- Replies: 15
- Forum: Transmissions
4L60E ... Have a question...

During the recent cold snap, I started my truck and after a few minutes went to shift into reverse. Nothing happened. After sitting a few more minutes while running it decided to shift into gear and take off as if nothing happened... Last evening I was driving it, hit the throttle to leave a...
- 94GMCK1500
- Thread
- Dec 29, 2022
- Replies: 37
- Forum: Transmissions