New Andersen WD hitch

Ron Gratz wrote:

If I use Bruce's data where he used a force gage in the chain, 1/16" = 600# of chain force. If this is a linear relationship which I doubt it is, for 7,800# chain force it would need to compress 13/16"

Bruce's data showed a load of 260# per chain required for a compression of 1/16". Again, we don't know what happens beyond 1/4".

I have my doubts that will happen with the size of wrenches we are talking about here. This may also come down to that Andersen has a totally different thought process on what is good WD. They show a F250 in their video. They may allow the truck to take bear more of the TW on the rear axle and let the front go light.

I will have to find which poster stated he could not pull any harder on the wrench to get more WD.

In this post, Renojack indicated the maximum compression he could achieve was a little over 3/8".

Ron

Ron,

Your right, I miss read Bruce's data. his 500 to 600# at 1/16" was a combined load statement. Looking at his graph I see the 1/16 = 260#

This makes the situation worse.

Using 0.0625 is to 260# as 7,800# is to X, I get 1.875 inch compression.

Using Bruce's data.

Using 0.250 is to 1,220# as 7,800# is to X, I get 1.598 inch compression.

I have my reservations if one can approach that amount of compression.

And yes, Renojack is the one with the 2500 Burb I was looking for. Thanks. His truck is very similar to my older one. However his truck is a lot lighter from some reason. He reported he could not crank with the wrenches he had or even with a deeper socket much past 3/8" and still came up 260# light on the front of the Suburban with a 960# TW. Knowing the 2500 Suburban, the truck is compensating for the issue with not being able to transfer the weight. On my 2003, 2500 Burb I had a 1,200# TW verses his 960#. Not being able to move the rear axle weight would of put me over the 8,600# GVWR of the truck. On a 1,200# TW I needed to move rear axle weight to the TT to stay under the GVWR. And have a very light front end may not be desirable.

Hopefully we will get more good reports from the scales on weight transfer with the heavier TW campers or better yet, a urethane spring rat they are using.

Thanks

John