Diff Ratio ID
I have a '72 K/5 parts truck. I want to cannibalize the rear axle for a replacement on my '71 Jimmy 4x4. I pulled the differential cover and read off the following numbers:
326663
N
GM 34
3817779
14:43
GM 09752
015 [hand stamped]
This is an open diff 12 bolt.
We turned the tire about 3 times for one turn of the ring gear.
I'm guessing 3.07:1,
I was hoping for a 3.73:1 for a direct replacement. I might get by with the 3.07 temporarily while I rebuild the 3.73 Posi, if I disconnect the front prop shaft so I [or someone else who is not familiar with the swap] don't accidently shift into 4WD and tear up the driveline and/or transfer case.
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Every 25 years I like to rebuild that 292, whether it needs it or not.
Last edited by '68OrangeSunshine; 08-06-2010 at 01:51 AM.
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