I'm thinking of going for a donor sierra for the parts i need, so far i was lucky to get a diff from a 2.3D, so i need the driveshafts/hubs to match, i read somewhere that there are two different types?
is so does anyone know what will/won't fit?
cheers

there are 2 types but afaik the only difference is the diameter of the main shaft, the ends and lengths are the same

I can never remember the exact number of splines on the inner side of both the shafts, but it's something like this:

smaller = 22 (or23) splines
larger = 26 splines

Steve

Thanks for the info
i found this HERE which might be helpful to others.
going by the part numbers, 1.7 2.0.1.8td. and some 2.8 should fit.