For all pre A plus 1275 engines with a stepped bushing fitting to suit crankshaft.
Floating bushing with circlip to hold it in place . This is also part of our new drop gear kit which uses this stronger teeth profile for road use with our new C-22G943 idler and roller bearing kit for gearboxes with idler gear case wear.
You will require all 3 drop gears to this design to fit A Plus power assemblies
End float clearances ie .0035 to .0065 - see shim washers DAM6486