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Dave_Pete's avatar
Dave_Pete
Explorer II
May 05, 2015

Equalizer brand WD hitch Torque Specs

I can't remember the exact part names right now as I'm away from the small print on the parts and in the installation manual, but here's a question about torque on Equalizer Hitch bolts.

I bought a TT from dealer a couple of years ago. Part of the deal included a new "Equalizer" brand weight distribution hitch, parts and installation. Well there were several problems with the installation that I had to fix, such as the proper - and balanced - distances for the brackets that bolt onto the trailer tongue and the angle of the head (of course they didn't provide me with the extra washers needed to properly set the angle so later in my different state of residence I had to go track some of those down for proper setting).

Finally got it all set, except on occasion the hitch made loud, ugly noises while turning and at first I could seem to control it with more grease (I use white lithium) on the pressure surfaces (the noise was coming from just one side at the hitch platform. The socket I think it's called.

A few days ago I was setting up the trailer and cleaned and re-greased all the WD hitch parts in preparation for the season. In the instructions, I couldn't find torque specs for the big bolts that secure the sockets to the hitch. It's those sockets that are squeezed and are in essence, the pivot points of the arms.

The instructions covered torque specs for the other big bolts used in installation, but these come attached from the factory and didn't list any torque specs. I compared the two sides with the torque wrench and the tighter side was 150 ft lbs while the looser side was 140.

The noise still occurred. So upon a complete dis assembly, I noticed a label on each socket in VERY small print that said "for longer life keep lubed and bolts tight, aprox 45 ft lbs".

I loosened the bolts to 45 ft lbs and everything works well!

Has anybody else run into this? Do they come so over tight from the manufacturer? Did the dealer installer incorrectly tighten everything without verification for application? Any comments or thoughts on the subject?
  • Dave Pete wrote:
    Finally got it all set, except on occasion the hitch made loud, ugly noises while turning and at first I could seem to control it with more grease (I use white lithium) on the pressure surfaces (the noise was coming from just one side at the hitch platform. The socket I think it's called.


    Progress Mfg would argue that noise you're hearing is normal - Page 26 of the Equal-i-zer owner's manual. You can mitigate that noise somewhat by using Equal-i-zer's own brand of lubricant (sparingly) ... with my own EQ I used a dry film lubricant called Slip Plate that is sold by Tractor Supply. Regardless, if your Equal-i-zer is properly sized for the task at hand and properly adjusted it will be noisy ... just the nature of the beast.
  • The socket spec stickers on my hitch call for 45 - 60 lb ft. I read somewhere that the manufacturer ships the hitch with the bolts at something like 120 lb ft expecting the sockets to wear in over time.
  • My neighbor who recommended the brand to me when I purchased, said even though the instructions don't call for it, he uses a little grease on the L brackets side. I do too. That area doesn't make noise and the lube MAY result in "less" anti-sway I suppose, but I don't suffer from that condition. The purpose of the WD job is accomplished with the actual LIFT that the lube doesn't counteract.

    Even so, I had four WD setups in the chain style prior to this brand. Comparatively speaking, I loved the chain style and am not that happy with the Equalizer design. Even around the hitch only there is more exposed grease area and I ALWAYS seem to get my hands into it. Very irritating. The chain style I used were easy on and off (if set up right and you use the jack to assist) and had grease sockets that keep the mess under control. You'll get others saying just the opposite on preference.

    There was an old time RV dude in our community who told me how he mounts the chain style brackets to the trailer frame 3/4" further back than straight up and down (when truck and trailer are in exact straight line) and that gives a slight anti-sway control. I always installed them that way from the first set and never had sway problems, and traveled all over. In town and cross country (Alaska and Virginia from Wyoming). I can't say whether I would have had sway conditions if installed straight up and down.
  • Not sure if I could move the arms if mine were set to 150.

    As it is I have a dedicated socket/bar to loosen them before unhitching, and to tighten after. I just crank them tight (probably a bit more than 50-60), and it works well.

    Still noisy despite lubing them, but I'm never sure whether the noise comes from there or from the un-lubed arms on the brackets.
  • I suspect that the dealer over tightened them. 40-45 lbs is the correct torque for those bolts. The ones holding the hitch head on the shank require much higher torque - around 400lbs if I remember correctly.

    You can download the installation instructions here.
    Barney