Auto trans shift lever lube - need insight - The 1947 - Present Chevrolet & GMC Truck Message Board Network

CCCC · 08-24-2013, 09:54 AM

The shift lever for my 1972 C30 T400 will not go into "Park" after having been stored for a while. I have checked all parts of the linkage/mechanism down to and including the pawl inside the pan - all are free and it will shift into park at the transmission.

I have been told that this problem can be caused by hardened grease/lube somewhere down in the shift lever shaft (along the steering column?). Anyone exprerience this - and can you explain is the best way to free-up such a condition? Thanks for any info.

Lee H · 08-24-2013, 10:16 AM

I solved that problem by spraying some penetrant just at the shift lever base and working it back and forth. Soon it loosened up and shifted into park just fine.
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08-24-2013, 09:54 AM	#1
CCCC Registered User Join Date: Mar 2007 Location: San Pedro River, SE Arizona Posts: 734	Auto trans shift lever lube - need insight The shift lever for my 1972 C30 T400 will not go into "Park" after having been stored for a while. I have checked all parts of the linkage/mechanism down to and including the pawl inside the pan - all are free and it will shift into park at the transmission. I have been told that this problem can be caused by hardened grease/lube somewhere down in the shift lever shaft (along the steering column?). Anyone exprerience this - and can you explain is the best way to free-up such a condition? Thanks for any info. __________________ CCCC 67 Sting Ray Coupe 327 4sp; 68 K10 Suburban 327 4sp; 69 K20 Lifted 383 4sp; 69 C80 Fire Truck 478 V6 5sp/2sp; 69 C20 Longhorn 327 4sp; 70 C30 Wrecker 350 4sp; 70 C30 Flat Bed 350 4sp; 71 C20 LWB 350 4sp; 72 K5 Blazer 350 4sp; 72 C30 Flat Bed Gooseneck Hauler with sleeper 350/TH400; 72 C20 Longhorn 402 4sp; 52 Mack LTL Supercharged Cummins 5sp x 3sp; 01 Dodge 5.9 HO Cummins 6spd; 02 Safari Trek 2430 8.1 Vortec on Workhorse Chassis; 03 Silverado 2500 HD 4wd Duramax/Allison Moved but still in the family 70 C20 Custom Camper 350/TH350; 72 K5 Blazer CST Highlander 350/TH350 Recently sent to new homes 72 C30 MoHome 402 4sp; 72 K5 Blazer Conv 350 4sp; 75 GMC 6000 Aerial 350 w Allison; 72 GMC 3500 Utility 350 4sp; 70 GMC 3500, 350 4sp

08-24-2013, 10:16 AM	#2
Lee H Registered User Join Date: Jun 2010 Location: Upland Ca Posts: 4,147	Re: Auto trans shift lever lube - need insight I solved that problem by spraying some penetrant just at the shift lever base and working it back and forth. Soon it loosened up and shifted into park just fine. Posted via Mobile Device __________________ 1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703



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