This premium builder kit consists of four (4) 3/8 inch thick riser plates, two (2) 3/8 inch thick inner gusset plates and four (4) 1/4 inch thick CNC formed steel outer gusset plates. The vertical separation between the lower link pivots (Kit MB2124 sold separately) and this front upper link plate kit is 9 inch vertically. The axis of the upper pivot is on center with the axle and is positioned 7 inch vertically from the topside of the axle.

Inside dimension of the riser plates measures 2-5/8 inch with holes to fit 3/4 inch diameter bolts. The riser plates are designed to straddle three sides of the axle so you can get the most amount of weld for strength.

The inner gusset plates feature keyed slots for interlock positioning with the riser plates. We could have stopped right there and this would be one of the strongest Rockwell upper link mounts available, however, we took it one step further. We then completely boxed in the risers and inner gussets with precision CNC formed outer gussets.

Why is this important?

If you're running heavy duty Rockwell axles on your rig, you're doing it for the absolute most strength you can get in an axle. Why shouldn't the connection between your axle and your chassis be even stronger than the axle itself? The added benefit of boxing in the whole mount is there are zero areas for mud and water to get trapped creating corrosion. This also makes cleaning and maintenance a breeze.

No other Rockwell axle link plate kit available on the market features this level of overkill. Ours does.

That's why.