Quote:
Originally Posted by jkd
Yessir, lots if not most rearends are like that. The ring gear isn't necessarily centered in the housing due to the design of the whole differential assembly, and since the pinion gear is mated to it, it and the driveshaft won't be centered either.
Can't remember the correct terminology regarding which is which, but many bigger truck rear ends have the pinion gear driving the lower half of the ring gear versus the upper half. (Above or below the ring gear center line.) There's a gazillion designs out there, especially the bigger stuff, 2 speeds, Eaton 3 speed tandems (a disaster in engineering), double reduction (that's a housing full of gears), and on and on.
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The term for the off center (above/below) of the ring gear axis centerline is "hypoid". Somewhat similar is "spiral bevel" gears. The pinion and ring gear being off center side to side probably has some technical name but I just call it driveline/driveshaft/or pinion "offset".
I think that is worded correctly..........