Axle Code Number translated to English - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Vince M · 12-01-2002, 12:01 PM

Got this off my axle now I'm curious as to what it means...

RA 12 11 W2

It's off a 68 12 bolt (I think)

Want to confirm year and axle ratio...and any other secret decoder ring info that's in the number. Is there a web site link for these numbers also...?

Thanks for the help.

No3Fan4Ever · 12-01-2002, 01:31 PM

RA is 3.07 ratio
12 means built in Dec.
11 means dec. 11
W means built at the Warren plant
2 I think means second shift, but not sure
Info from Cars & Parts Chevy ID Book for 1968 truck
hope that helps
Tim

12-01-2002, 12:01 PM	#1
Vince M Senior Member Join Date: Apr 2000 Location: Orlando, FL Posts: 1,076	Axle Code Number translated to English Got this off my axle now I'm curious as to what it means... RA 12 11 W2 It's off a 68 12 bolt (I think) Want to confirm year and axle ratio...and any other secret decoder ring info that's in the number. Is there a web site link for these numbers also...? Thanks for the help. __________________ ............................................................ 68 Chevy CST SWB w/LS1, carb & 700r4. Golden Anniversary clone with a few improvements. Last edited by Vince M; 12-01-2002 at 12:03 PM.

12-01-2002, 01:31 PM	#2
No3Fan4Ever Running on empty Join Date: Aug 2002 Location: Roanoke, Virginia Posts: 1,033	RA is 3.07 ratio 12 means built in Dec. 11 means dec. 11 W means built at the Warren plant 2 I think means second shift, but not sure Info from Cars & Parts Chevy ID Book for 1968 truck hope that helps Tim __________________ _____________________________________________ Tim We have two rules here at the Rock. Rule #1: No writing on the walls. Rule#2: Obey all rules 70 GMC Sierra Grande "Custom Camper" Longhorn 402 Big Block TH400 PS PB factory AC Posi; 94 Bronco XLT 302, auto;worn out daily driver



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