Transmission pops out of park - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**FL71C10** · 08-30-2010, 10:41 PM

I'm looking at a 76 GMC with a 350 and a turbo 400 to use for the motor. The transmission won't stay in park! You have to hold the shift lever in park and tgen if you let go, it will slip into reverse. When I dropped it into neutral it stayed there, but then wouldn't start in neutral, but if I dropped it into drive it started (in gear!). Is this a linkage problem, or something inside the transmission. If it's just a minor adjustment or worn out linkage, that's no problem, but I don't want to have to do any internal work on the transmission.

Can anyone give me some advice on the severity of this problem?

Thanks!

08-30-2010, 10:41 PM	#1
FL71C10 Senior Member Join Date: Jun 2010 Location: Orlando, Florida Posts: 2,509	Transmission pops out of park I'm looking at a 76 GMC with a 350 and a turbo 400 to use for the motor. The transmission won't stay in park! You have to hold the shift lever in park and tgen if you let go, it will slip into reverse. When I dropped it into neutral it stayed there, but then wouldn't start in neutral, but if I dropped it into drive it started (in gear!). Is this a linkage problem, or something inside the transmission. If it's just a minor adjustment or worn out linkage, that's no problem, but I don't want to have to do any internal work on the transmission. Can anyone give me some advice on the severity of this problem? Thanks! __________________ 71 Chevy C10 Shortbed Stepside. LT1 with 4l60E. Just got back from painter, in assembly now.



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