axle length question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Zeke · 08-27-2009, 01:23 PM

I ususally hang out on the 67-72 board but I have a question about axle lengths. I plan on putting a 12 bolt from an 81 GMC into my 69 and want to keep the 6 lug pattern. I noticed that 2wd axles are 1/32 longer 31-5/16 vs 31-9/32 for 4wd 6 lug. Will this make a difference? and are the axle housings different between 1/2 2wd and 4wd?

I have the pads to weld on the axle housing but not sure about the insides. Just want to make sure I am not dropping $$ into something that won't work.

Thanks for any info.

08-27-2009, 01:23 PM	#1
Zeke Active Member Join Date: Jun 2002 Location: L.A. Lower Alabama Posts: 453	axle length question I ususally hang out on the 67-72 board but I have a question about axle lengths. I plan on putting a 12 bolt from an 81 GMC into my 69 and want to keep the 6 lug pattern. I noticed that 2wd axles are 1/32 longer 31-5/16 vs 31-9/32 for 4wd 6 lug. Will this make a difference? and are the axle housings different between 1/2 2wd and 4wd? I have the pads to weld on the axle housing but not sure about the insides. Just want to make sure I am not dropping $$ into something that won't work. Thanks for any info. __________________ 1969 C10 350 3spd 1995 GMC 3500 XC 350 dually When Thomas Edison worked late into the night on the electric light, he had to do it by gas lamp or candle. I'm sure it made the work seem that much more urgent. George Carlin

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