RV.Net Open Roads Forum: Towing: Torque Wrench for WD Hitch nylock nuts

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Towing

Open Roads Forum  >  Towing

 > Torque Wrench for WD Hitch nylock nuts

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 5  
Next
Sponsored By:
dolfinwriter

El Cajon, CA

New Member

Joined: 10/24/2020

View Profile


Offline
Posted: 10/24/20 11:49am Link  |  Quote  |  Print  |  Notify Moderator

Is this the right thread for this, first of all?

I'm trying to install a weight distribution hitch to haul my trailer of stuff from east county San Diego California to Kansas. It's a 7' x 14' cargo trailer and about 6500 lbs GTW, and I didn't need much convincing of the need for a WD and sway reduction/prevention hitch.

Here's my problem: I need a torque wrench capable of 380 ft-lbs to torque two nylock nuts. NO ONE has a torque wrench that will go above 250 ft-lbs. I've tried Autozone, Pep Boys, O'reilly, Trailer supply stores, RV dealers, tire shops, Harbor Freight, pawn shops, Lowe's, Home Depot...

How does ANYONE do this? Or is everyone who uses a hitch like this blowing off the torque spec? The BALL is supposed to be torqued to 360 ft-lbs., and LOTS of places sell hitches and balls, but NO ONE has a torque wrench capable of properly torquing it, neither to rent nor to buy or loan.

How does ANYONE do this properly if you can't get this one tool needed to do it right?

What am I missing?

I would greatly appreciate any help in this area.

camp-n-family

London, Ontario

Senior Member

Joined: 07/26/2009

View Profile


Offline
Posted: 10/24/20 11:55am Link  |  Quote  |  Print  |  Notify Moderator

Go to a heavy truck shop where they service big rigs etc.


'17 Ram 2500 Crewcab Laramie CTD
'13 Keystone Bullet Premier 310BHPR
Hitched by Hensley


Lynnmor

Red Lion

Senior Member

Joined: 07/16/2011

View Profile



Good Sam RV Club Member


Posted: 10/24/20 11:57am Link  |  Quote  |  Print  |  Notify Moderator

Take it to a shop that does tractor-trailer work and have them finish tightening it. You could get a large breaker bar and stand on it after doing the math on how much weight centered where.





CA Traveler

The Western States

Senior Member

Joined: 01/03/2004

View Profile


Offline
Posted: 10/24/20 12:17pm Link  |  Quote  |  Print  |  Notify Moderator

For one time go to a truck stop, otherwise HD, Amazon, etc carry them.


2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob


Durb

NW

Senior Member

Joined: 01/15/2016

View Profile



Good Sam RV Club Member


Posted: 10/24/20 12:48pm Link  |  Quote  |  Print  |  Notify Moderator

You could make an adapter for a 250ft-lb torque wrench. The adapter would be a steel bar with the right size socket welded on one end and a socket welded to the other end to create a 1/2" female drive. For example: my 6014 Proto torque wrench has a functional length of 21.9" when set to 250 ft-lbs (the distance from the center of the handle to the center of the square drive). The calculation for the length of the adapter is a simple ratio:

21.9"/250 ft-lbs = X/380 ft lbs X = 33.3"
33.3" - 21.9" = 11.4" = length of the adapter (center to center)

Set the wrench to 250 ft-lbs and click your fastener with the adapter installed. The adapter needs to go straight out from the end of the torque wrench, not at an angle. If you are using your truck's receiver to hold your hitch head, support it to the ground with a floor jack and load your wrench to the ground, not sideways.

Or you could buy a 3/4" drive 600 ft-lb torque wrench. You could fabricate a really long cheater bar and load it with a spring scale (95 pounds 4' from the center of the drive).

BenK

SF BayArea

Senior Member

Joined: 04/18/2002

View Profile



Posted: 10/24/20 02:08pm Link  |  Quote  |  Print  |  Notify Moderator

Here is a lever arm that multiplies the torque


Link to Summit Racing and is $19.99 bucks
https://www.summitracing.com/parts/oes-........E0oHO7AIVJj6tBh2A2AHPEAQYCSABEgKo5vD_BwE

For some reason the clicky doesn’t work and here is the link
https://www.summitracing.com/parts/oes-24208?seid=srese1&gclid=EAIaIQobChMIjoGE0oHO7AIVJj6tBh2A2AHPEAQYCSABEgKo5vD_BwE

[image]

Installing wind generators and forgot the big torque wrench back in the shop and all the local hardware store only had 150 ft/lb torque wrenches

Plenty of steel bar stock, hack saw, Sawzall, sacrificial socket set and a welder did the job

To double a 150 ft/lb torque wrench you need to double the effective wrench length from bolt center line to the center of the wrench handle. Then whatever the torque wrench setting is doubled (times 2)

Triple the torque of a 150 ft/lb torque wrench, you need to triple the length from the bolt center line to the center of the handle. Then whatever the torque wrench seething is tripled (times 3)

The socket set you use must be capable of handling that kind of torque, so maybe a 3/4” square

We did that in pinch over nite as the windgenerator had to be ‘flying’ by mid nite the next...otherwise we lost money per the contract

The prices of 3/4” torque wrenches have come down significantly and probably cheaper to just buy one rated for your needs...of course a 3/4” socket set too...


-Ben Picture of my rig
1996 GMC SLT Suburban 3/4 ton K3500/7.4L/4:1/+150Kmiles orig owner...
1980 Chevy Silverado C10/long bed/"BUILT" 5.7L/3:73/1 ton helper springs/+329Kmiles, bought it from dad...
1998 Mazda B2500 (1/2 ton) pickup, 2nd owner...
Praise Dyno Brake equiped and all have "nose bleed" braking!
Previous trucks/offroaders: 40's Jeep restored in mid 60's / 69 DuneBuggy (approx +1K lb: VW pan/200hpCorvair: eng, cam, dual carb'w velocity stacks'n 18" runners, 4spd transaxle) made myself from ground up / 1970 Toyota FJ40 / 1973 K5 Blazer (2dr Tahoe, 1 ton axles front/rear, +255K miles when sold it)...
Sold the boat (looking for another): Trophy with twin 150's...
51 cylinders in household, what's yours?...

dolfinwriter

El Cajon, CA

New Member

Joined: 10/24/2020

View Profile


Offline
Posted: 10/24/20 02:26pm Link  |  Quote  |  Print  |  Notify Moderator

I'm not even finding a 3/4 drive 3/4" socket either. This just seems really weird to me.

BenK

SF BayArea

Senior Member

Joined: 04/18/2002

View Profile



Posted: 10/24/20 03:30pm Link  |  Quote  |  Print  |  Notify Moderator

There is a Harbor Freight tool shop in El Cajon

And they should have this 3/4 socket set, priced at $69 bucks

https://www.harborfreight.com/21-piece-sae-3-4-quarter-inch-industrial-quality-socket-set-40996.html

Mike134

Elgin

Senior Member

Joined: 11/20/2019

View Profile


Offline
Posted: 10/24/20 04:13pm Link  |  Quote  |  Print  |  Notify Moderator

I tightened mine first to 100lbs, paying attention to how hard I leaned down to reach 100lbs. Then slipped on a 4' length of pipe and leaned down with the same force to reach 400lbs but used a breaker bar rather than the wrench.

Menard's home improvement had the 3/4 drive socket and 3/4 to 1/2 reducer.


2019 F150 4X4 1903 payload
2018 Adventurer 21RBS 7700 GVWR.

dolfinwriter

El Cajon, CA

New Member

Joined: 10/24/2020

View Profile


Offline
Posted: 10/24/20 04:49pm Link  |  Quote  |  Print  |  Notify Moderator

BenK wrote:

There is a Harbor Freight tool shop in El Cajon

And they should have this 3/4 socket set, priced at $69 bucks

https://www.harborfreight.com/21-piece-sae-3-4-quarter-inch-industrial-quality-socket-set-40996.html


I've seen that set; it doesn't have a 3/4" socket. Smallest is 7/8".

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 5  
Next

Open Roads Forum  >  Towing

 > Torque Wrench for WD Hitch nylock nuts
Search:   Advanced Search

Search only in Towing


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2021 CWI, Inc. © 2021 Good Sam Enterprises, LLC. All Rights Reserved.