I am about to try this 355 swap soon and have ordered some used spider gears and side gears that go on the axle .they arrived and look good until I seen there are fewer splines than a old pair I had .I have not taken the ones off the truck yet so I don’t know how many there should be any one know the spline count on the axles.


1954 Canadian GMC 9300
"The Journey"
Follow in the DITY