Quote:
Originally Posted by davepl
CS148S169004
C Conventional 2WD
S Six Cylinder
1 1/2 Ton
4 Pickup
8 1968
S St Louis
169004 Sequence number
I still thnk this forum needs a "thanks" button! Or a "useful" button. Or a "You decoded it wrong, dummy" button.
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Based on Dave's above decoding of your VIN you originally had a 6 cylinder.
To my understanding all these series of (C10) trucks that came from the factory with a 6 cylinder got a 3.73:1 differential gear as standard equipment.
That said, had it come with a V-8 (option), I believe the default (standard) gear ratio would then have been 3.07:1.
The only caveat to this would be if your SPID called out for something specifically ordered unique or non-standard (ie: 4:11 or a 3.73 in a V-8 truck, etc).
All Good
Coley
