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Reddog1's avatar
Reddog1
Explorer II
Oct 25, 2017

Hitch pin location

I have a few questions based on the following setup. I have a '04 Dodge 3500 Quad Cab DRW truck. I have it setup to haul my TC, and my '87 Alpenlite 19. The Alpenlite weight is 5000 lbs, with pin weight of 360 lbs. It has a 10 inch pin box extension. My bumper pull hitch is a Curt with a 2550 lb tongue weight capacity.

1 It is generally said the pin weight should be over the rear axle or a couple of inches forward. If true why? On my truck the bumper hitch will handle 2550 lb tongue weight capacity. Why could I not put the pin weight over the hitch?

2 Considering my '87 Alpenlite 19 is 5000 lbs with pin weight of 360 lbs., would I have any negative issues pulling down the highway with a slider hitch slid all the way to the back?

45 Replies

  • ALL of my pin weight (3,500) is over the rear axle and none of it is on the front axle per the CAT scale. I don't know why it is like this but the bed hitch manufacturers have specific measurements that must be followed for a successful installation.
  • I was told the reason for moving forward of the axle is to distribute weight towards the front of the truck and off of the rear. It's an attempt to equalize the weight like what is done with a WDH on a bumper pull trailer.

    I'm sure this would be for 5th wheel trailers with heavy pin weights.
  • IMO, there's no reason you can't move the hitch point back.
    With a 5W like that, it's just like a boat or TT with a overhang.
  • Slider hitches are not design/intended for hwy speeds in rearward position.

    Rearward position is intended for slow speed Maneuvering

    5th wheel pin weight is set up over the axle so rear axle 'carries' the weight


    But it's your equipment ---no one is going to stop you from doing so
    Might want to check with your sliding hitch mfg. about restrictions/limitations on rearward position usage.



    360# pin weight :H

    5000# 5vr........pin weight S/B closer to 1000# (20% of 5vr weight)

    360# is only 7.3% which is LOW for even a bumper pull tongue weight


    Where are you getting those numbers ??
    5000#/trailer & 360#/pin weight