Spline on rear of transmission spinning in park. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

richards72chevy · 06-18-2019, 01:54 PM

I have the transmission in park and noticed that piece is spinning while it's in park.I have the drive shaft disconnected.Is this normal with the drive shaft disconnected?I'm waiting on my drive shaft to be finished at the machine shop.I've tried to Google the answer and only see arguments on other forums about the rear wheels spinning in park when the rear is on jack stands.Transmission is a turbo 350.

**kwmech** · 06-18-2019, 02:35 PM

No, it should not turn at all if indeed in the parking mode. It is mechanically locked internally into the rear drum. Disconnect the linkage from the trans and rotate the transmission lever all the way clockwise and see if you hear a click and double check the output shaft. If not, time to pull the pan off and have a look see.

**mongocanfly** · 06-18-2019, 02:59 PM

like kw....parking pawl....or not fully in park

richards72chevy · 07-06-2019, 03:37 PM

Mistake on my part.My home made linkage wasn't letting it drop into park.Next step is getting a good shift linkage kit from lokar or gennie.Thanks for the response.

06-18-2019, 01:54 PM	#1
richards72chevy Registered User Join Date: Dec 2010 Location: konawa ok/oakdale Ca. Posts: 1,647	Spline on rear of transmission spinning in park. I have the transmission in park and noticed that piece is spinning while it's in park.I have the drive shaft disconnected.Is this normal with the drive shaft disconnected?I'm waiting on my drive shaft to be finished at the machine shop.I've tried to Google the answer and only see arguments on other forums about the rear wheels spinning in park when the rear is on jack stands.Transmission is a turbo 350.

06-18-2019, 02:35 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,388	Re: Spline on rear of transmission spinning in park. No, it should not turn at all if indeed in the parking mode. It is mechanically locked internally into the rear drum. Disconnect the linkage from the trans and rotate the transmission lever all the way clockwise and see if you hear a click and double check the output shaft. If not, time to pull the pan off and have a look see.

06-18-2019, 02:59 PM	#3
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,582	Re: Spline on rear of transmission spinning in park. like kw....parking pawl....or not fully in park __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

07-06-2019, 03:37 PM	#4
richards72chevy Registered User Join Date: Dec 2010 Location: konawa ok/oakdale Ca. Posts: 1,647	Re: Spline on rear of transmission spinning in park. Mistake on my part.My home made linkage wasn't letting it drop into park.Next step is getting a good shift linkage kit from lokar or gennie.Thanks for the response.



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