NOW COMES IN TUMBLED STAINLESS STEEL SO YOU CAN CHOOSE TO LEAVE IT RAW OR POLISH IT TO A SHINE EITHER WAY IT WILL NOT RUST :) This support allows you to mount a horseshoe oil tank to a 36-57 rigid early frame without needing to weld to the frame.Support is adjustable to work with some aftermarket frames and various HD style oil tanks(4-1/2in all the way down and 5-5/8in fully extended). holes are designed with slots that give you a little slack for adjustment. if you are running a later transmission plate with out the transmission adjuster holes (shovel / evo) i have an adapter bracket that will allow you to run this support.