So, things get curiouser and curiouser...
In spite of the above discussion, and documentation that clearly says the 70+ mainshaft is needed with a 70-71 sprocket shaft for correct chain alignment, after opening everything up and measuring, it turns out my motor guy did indeed put a 70-71 sprocket shaft back in (that's what the previous owner had put in the motor), but the trans mainshaft is, in fact, a 65-69.
Looks like it's all going to line up again when it goes back together, as the inner sleeve for the compensator, which determines sprocket location, ends up in the same spot regardless of whether you use the 65-69 sprocket shaft, or the 70-71, at least when used with a -65 inner primary. Like me, unless you measure it, you don't realize that someone has put in the wrong sprocket shaft until you try to put the outer primary cover over the compensator.
Needless to say, it's all torn back down again for installation of the correct sprocket shaft, but at least I don't have to swap out the trans mainshaft as well.
In spite of the above discussion, and documentation that clearly says the 70+ mainshaft is needed with a 70-71 sprocket shaft for correct chain alignment, after opening everything up and measuring, it turns out my motor guy did indeed put a 70-71 sprocket shaft back in (that's what the previous owner had put in the motor), but the trans mainshaft is, in fact, a 65-69.
Looks like it's all going to line up again when it goes back together, as the inner sleeve for the compensator, which determines sprocket location, ends up in the same spot regardless of whether you use the 65-69 sprocket shaft, or the 70-71, at least when used with a -65 inner primary. Like me, unless you measure it, you don't realize that someone has put in the wrong sprocket shaft until you try to put the outer primary cover over the compensator.
Needless to say, it's all torn back down again for installation of the correct sprocket shaft, but at least I don't have to swap out the trans mainshaft as well.
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