I need some help figuring out what rear axle I have. I'd like to know what sort of load it is rated for. This is 57 Task Force with a 3/4 VIN, but with the wheelbase lengthened a little by cutting and reattaching the frame. So for all I know, the whole rear end could be different. But the frame rails are the same size and everything looks like it matches.
I know so little about trucks, I'm not sure what to look for. Makes googling for information challenging.
With one set of dually wheels off the ground, and one stopped, I spun the wheel 10 times, the driveshaft moved 23 to 24 times. This surprised me as I was expecting a ratio closer to 4.5-7 for this truck. Is a gear swap doable/possible such that this could be the original axle with a different set of gears? My reading on here didn't seem to indicate that any were available. Am I trying to determine the ratio incorrectly?
It's got two sets of springs. It looks like a set of 10 leafs, with an additional overload set above it. 5 or 6 springs on it, I need to recount.
After some scrapping, brushing, cleaning there is a number on top of the axle housing that says CD1129.
Anything else I can check to help identify this?
Thanks,
JFS III
