Recommended Installation Kit for RBW Fifth Wheel Hitch on a 2003 GMC Sierra 2500HD 6-1/2 Foot Bed

Question:

I have a 2003 GMC SIERRA 2500HD with a 78 inch bed. I also have a 2003 RBW lil rocker hitch but no installation kit ie. rails bolts etc. Does such a kit exist or are they all universal? The lil rocker i have is rated for 15k. The trailer im towing is 12k and 30 foot long,do i neede a slider hitch or is the one i have ok?

asked by: Al P

Expert Reply:

The RBW Lil Rocker 5th wheel hitch is no longer in production, but it does fit into industry standard above the bed rails from other manufactures.

The custom fit brackets for your 2003 GMC Sierra 2500HD are the Reese # RP50064-58. These will include the rails, brackets, and hardware to install it all to your truck.

We typically recommend a slider hitch like # RP30075 for your sized vehicle for adequate clearance, but you can use the following measurements to be sure.

The formula to is this:

(A + B) - C = Clearance
A = Distance from the fifth wheel jaw center to the truck cab
B = Offset used (slider clearance)
C = Width of the nose of the trailer divided by 2.

I attached a couple help articles for you to check out on fifth wheel towing as well as all the 5th wheel hitches we recommend for your truck.