Crankcase Assembly with 3-1/2in. Bore - Natural. Fits Big Twin 1984-1991 - S&S Brake Upgrades - Front * There will be a

* There will be a variance in the length of the gap between the seat & tank depending model

but not necessarily the stock performance

1 x MS-AS3521

* Also Fits Saddlebags with Extended Skirts

Crankcase Assembly with 3-1/2in. Bore - Natural. Fits Big Twin 1984-1991 - S&S Brake Upgrades - Front * There will be aFeatures & Benefits: * Natural Aluminium Finish. * Perfect for stock replacement & high performance applications * These crankcases offer some unique features. * Besides being machined for a crank position sensor, they are also compatible with stock flywheel assemblies, primary covers, gearcovers and are clearanced for 38 amp alternator stators. * Relocated cam chest oil pick up increases gear case scavenging & virtually eliminates oil carry over at