We carry a variety of steel shims to adjust
your pinion angle up or down.
Kingpin GM, Dodge and Ford D60 front axles have a spring perch
built into the differential side and because of that, if you put
a shim under the front springs, the big u-bolt (Ford
applications) or the studs (GM/Dodge) don't sit on the same
plane as the u-bolt plate. To fix that, you can put a
third shim on the top of the differential side spring pointing
the opposite way, that makes sure everything sits square.
For that reason, we offer our shims in sets of three:
Choose the category you would like more information on.