Can you tell how deep into the handle hole the shaft extends? Maybe compare measurement of the handle hole depth to the exposed shaft length. If the splines are fully engaged but the handle won't slide all the way down to allow the set screw to engage the slot on the shaft, I would agree with 52Carl that his solution of shortening the shaft end may be in order.


~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)