Powerglide input shaft

[r3tracing]

Input on running stock vs aftermarket input shaft on a powerglide. 2 barrel imca stock car

[badfast47]

I have broken a few in the past and with the way tracks get so ruff it would be worth it to use a aftermarket. You'll be glad you did.

[JustAddDirt]

there is also a conversion to use a 350 turbo imput shaft
they are bigger
requires modification

[SRXSRULE]

I must have been lucky. I ran a direct drive powerglide for 10 years with a stock input shaft and never broke one. Eric

[DaveBauerSS6]

Get the moly. They are new so the clearances are tight on the seal rings, no wear on the bushing area and they are strong. Get the 350 spline. Never worry about it again.