69 Driveshaft part numbers
On my 69 (427, 4-speed, M-21) driveshaft I noticed the this number 3952197 on the two forged forks. Is this the correct part number for the driveshaft or is this just a forging number? I'm confused as the stencil kit from Quanta gives 3957056 as the part number for the driveshaft.Thanks Wes
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Re: 69 Driveshaft part numbers
My parts book shows part number 3963852 for 63 to 70 manual trans.
The other two numbers don't show up in GM Parts Wiki. -
Re: 69 Driveshaft part numbers
Wes-------
The raised numbers on the yokes are the forging numbers for the yokes. They are not the part number for the driveshaft.
The driveshaft was supplied to PRODUCTION as an assembly with the u-joints and forward transmission yoke. The part number for this assembly (which, incidentally, was never available in SERVICE) for your application was GM #3957056 and that was the number stenciled on the driveshaft.In Appreciation of John HinckleyComment
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Re: 69 Driveshaft part numbers
Thank you Joe for the clarification. Greatly appreciated! WesComment
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Re: 69 Driveshaft part numbers
The GM service part number for 63-E70 Corvette drive shafts (Exc. 68-70 w/TH400) is 3830618 (in Gr. 5.441 and later in Gr. 5.544), overall length is described as 31 25/32".
Specifications are as follows:
2.00" tube dia., 0.095" wall thickness, 29.90" C/C U-Joints
GM # 3830618 was replaced with GM # 3963852 in Jan. 1970 as per Chevrolet Parts History (for service parts).
Specifications are as follows:
2.00" tube dia., 0.120 wall thickness, 29.90" C/C U-joints
GM # 3924148 is the drive shaft service part number listed for 68-70 Corvettes w/TH400.
Specifications are as follows:
2.00" tube dia., 0.095" wall thickness, 29.50" C/C U-Joints
DaveComment
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Re: 69 Driveshaft part numbers
Thank you Dave. Appreciate you taking the time to do the research and post this info. WesComment
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