Forum Discussion

rerod's avatar
rerod
Explorer
Jun 12, 2013

How over engineered are receivers?

The PO told me not to worry about the rusty receiver.. He said he pulled 10k for allot of miles. The Uhaul sticker was faded, but I now see its rated for 10k gross and 1000 lb tongue..

My gross is well under at 8k, but my tongue weight is at least 1250 lbs even relocating things back behind the axles.

I know receivers must be over engineered and mine should easily handle the additional 300 lbs tongue weight.. But I was wondering how much abuse these receivers can actually handle before failure. To me, the weak points are the six budget bolts holding it on.. I have better fine thread bolts, which Dexter used to attach my 5200 lb TT axle on before I lifted it 4". I could drill out the old holes and replace, at least the back two. Welding it on would also be a option.

Anyone have some first hand experience pushing receivers well past their limits? Iv seen people pulling hay wagons twice the rated limit, but that's not tongue weight or highway speeds.

34 Replies

  • rerod wrote:


    I know receivers must be over engineered


    No. Many are under engineered. Proceed with caution.
  • It's cheap insurance to just replace it, fasten it with grade 8 bolts and you're good to go.
  • No one is going to condone it and say "Yeah, go ahead, it'll be fine to overload that hitch!"
    But the way I see it you aren't really overloading it.
    Define old and rusty. That may factor into it. We talkin peeling paint or RUST?
    If it's got cheapo grade 2 bolts in it, then yes replace them with some grade 5 or 8. Fine thread doesn't matter unless they are in tension. If just in shear then NC thread wil work.

    I have been guilty of overloading the stated capacity of more hitches than I have fingers.............and toes to count on. Mostly on tongue weight. Only 1000-1500lbs tongue capacity is real easy to overload.

    The key is to do so with a bit of sensibility.
    In your case, 2-300lbs over the bending (tongue? capacity while considreably under the tension capacity, probably not too risky, especially since you've identified a weak point and will be fixing it.

    You're not working it well past it's limits, rather barely over it's rated capacity. Use caution.
  • rerod wrote:

    Anyone have some first hand experience pushing receivers well past their limits?

    Not me, and I don't want to have any experience pushing my receiver past it's limits?

    Sure, people do, and I guess they have gotten away with it, but that doesn't make it right...at least not for me.

    For me, there is no compromising the big safety system...tires, brakes, hitches, etc.