101066 - Cast Universal F-Top Top Plate Kit, U-Bolts Down. This unit fits all trucks with 3" wide leaf springs
One Up Offroad Kit Stock# 101066 F-Top Top Plate Kit for U-Bolts Down suspension configurations on trucks with 3" Wide Springs and 3" through 4" Axles.5/8" Pin, Position Adjustable.
Depending on the truck you may have to trim the leaf springpin / bolt off at the top of the nut.
This part lets you convert to U-Bolts going down using F-Top style U-Bolts. If you need more clearance between your tire and your leaf spring switching to F-Top U-Bolts going Down will give you that clearance between the tire and the spring. If you want to run under axle bar mounts instead of weld on mounts or traction blocks, this top plate will let your convert your U-Bolts up application to a U-Bolts down application to be able to mount the under axle bar mount. If you already have U-Bolts going down with F top U-Bolt plates on a 2011 and newer Superduty this item will let you adjust the top plate to match up to the traction block U-Bolt holes when changing axle position.
If you have 2 1/2" wide leaf spring like on 2010 and older Chevy’s and Toyota’s and you want to run U-Bolts Up, you need these top plates with adapter part # 101067 to get the U-Bolts thru the guide holes in the block because all OUO Traction Blocks and Lift Blocks have 3" wide spacing.
Almost all Ford & Dodge Trucks have 3' wide springs you just have to make sure you have a 3 " through 4" axle tube diameter.
This Top Plate lets you run large 3/4" Ubolts.
This part # replaces our other part #'s 101060, 101061, 101062, 101065.