This past Saturday I picked up yet another rear axle for the 51 GMC.
1st one I bought 5 years ago in anticipation of the 1 ton I was going to have "eventually". Didn't find out untill I got into it but unfortunately had spun a wheel bearing and a carrier bearing, not terrible but not good enough for a "keep it forever" kind of truck.
2nd one I bought from a friend and local junkyard owner, It has the 3.73 axle gears I want and I hoped would yield a good housing too. However it has severe rusting on the bottom of the axle tubes (Priced very well for just the gears though).
3rd one is from an RV with 88,000 miles and at least on the outside looks real nice, no rusty tubes or terribly bad seals. It has 4.10 gears that I won't use.
PICTURE 1 PICTURE 2 These are all 14 bolt axles, GM 1 ton dual wheel but narrow from a "Cab and Chassis" never from a truck with a dually pickup bed. I did learn/concluded that the C&C axle from a step van or RV is likely to have shock mounts both on the front of the axle tube, while one from a pickup cab truck has one shock mount front and one rear. This makes the P30 or RV or step van (whatever you call them) axles a slightly better choice if using the original optional AD upper rear shock mounts.
Next seat belts when I can again get the truck out of the garage,
Grigg
