Re: 72 K2500 Rear Axle Identification.
Quote:
Originally Posted by Joesjunk
There’s a 3 letter code stamped on the top of the 3rd member. If it’s a 70 or older it will be 3 letters.
It’s either 4:10 of 4:57.
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My book shows 70 and newer the codes are 3 letters and 69 and older are 2 letters.
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'51 South Bend Model "9A"
'56 Chevy 3600 NAPCO
'74 Chevy Cheyenne Super K20-restored on 37's
'72 GMC Sierra Custom K2500- in progress
'08 GMC Envoy Denali
'12 GMC Sierra 2500HD Denali
'17 GMC Yukon XL
VCCA member #58596
http://www.nohrco.com
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