#520 Pitch 37T Sprocket 6 on 5.25" BC
CA$100.00Price
M@W Steel 37T #520 Aluminum 1 pc. Sprocket.
Note: This is a #520 Sprocket. It will accept a #530 Chain as the pitch is the same, but there will be 1/8" of additional side to side clearance if you want to use it for your 40 Series Gearbox #530 12 T Drive sprocket.
Bolt Pattern: 6 bolts on a 5-1/4" bolt circle.
Center Hole diameter: 4.563"
Uses 6 X 5/16" bolt holes.
Works with popular hub adapters like ARC. Use one of these for keyed solid axles.
Also Fits # 530 PowerPack IRS Spool (Max 48T if mounted in J-frame)
A 37 T Drive Sprocket provides you with a 6:1 Final Reduction Ratio when used with the 12T drive sprocket with a 40 series Gearbox and Big Block PowerPack.