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Old 05-16-2020, 12:22 PM   #1
burb71
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4 speed transmission help

How do I determine which clutch and disc it's correct for my 1968 C20, with 327 and 4-speed
Reverse is down or back on the right
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Old 05-16-2020, 07:59 PM   #2
gmc684x4
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Re: 4 speed transmission help

Is it factory setup look it up on rock auto
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Old 05-16-2020, 09:43 PM   #3
HO455
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Re: 4 speed transmission help

LMC lists the 12 inch as stock for your truck. But unfortunately over the years it is possible that someone has swapped a different flywheel into the truck. So really the only way to know for sure is to pull it apart and measure it.

https://www.lmctruck.com/1967-72-che...tch-components
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
RIP Bob Parks.
1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo
If it breaks I didn't want it in the first place
The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377
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