ARB Rear Bumper/Tyre Carrier - Jeep Wrangler

Oct 06, 2006 30 Replies

There is definitely more to it than just the vehicle weight - the Commanche pickup was rated at something like 2000# with a manual tranny and 4.0 L engine, regardless of rear end. The same body with the D44 and manual had the same limit, but substituting an auto tranny brought you up to a 5000# limit. Now, I grant you that the 4.0 with a

3.07 differential ratio beh> The d44 doesn't change the wheelbase. The limit here is 2000# if I remember

I recently towed a 22ft trailer with a 2 ton 1954 Mercedes on it with my Wagoneer - absolutely no problems @ 6000lb and possibly 1000lb over the rated limit (I don't know if I had the "towing package"). So the Wagoneer has the same capacity as ... the Liberty ? Not in the real world, methinks.

Dave Milne, Scotland

My WJ has the 4 liter, 42re 4 speed autobox, and 3.55 gears in a Dana35c. It is rated at 5000 pounds.

The 4.7 with the 545re tranny with 3.73 gears in the D44a is rated at 6500 pounds.

In the WK

3.7liter 580 5 speed tranny 3500 # ** 4.7 liter 545rfe 6500 # 5.7liter 545rfe 7200# 6.1 liter 580 5 speed 3500# **

I have tried local shops, but the problem is that Wranglers (rather Jeeps) are a novelty truck here so not everybody is keen about the idea (but are willing to charge an arm and a leg). I have a few photos and can probably get the measurements as well. But would the shop give a rating on the towing hitch? I don't want to anger my insurance and local authorities (the truck is still very valuable to me, being a 01).

Thanks TW

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The idea is that a different front bumper will change how the crumple zone works and how much of the shock transfers through the chasis. I know the trigger is not near the bumper. The other reason is that I may end up designing a bumper with sharp protrusions, which when in an accident will do serious damage to the other car or pedastrians. Its a stupid law / regulations, but if I want to keep it street legal, I have to comply with it.

ARB being Australian, is cheaper here than US. Almost everybody ends up with an ARB front bumper (regardless of make of truck).

I might do some research on what happens when people change the steering and get rid of the air bag. It may be a way to bypass the whole thing. I have seen a lot of rice burners with Momo steerings and all.

TW

Thanks TW

I believe here the trailer can be upto 80 percent of the gross weight of the towing vehicle. So Wrangler would be allowed more than 900kgs. Although I have no need for such a rating as I don't have a boat or other toys to tow around.

TW

That is also true here, but I'm still trying to find out if that is a recommendation or a legal maximum. However, 4x4s have an exemption from the recommendation/requirement. So possibly a Ford F350 wouldn't be allowed to tow very much here !

Dave

Underdstood on te TJ. But that same bumper can go an an XJ.

Matt Macchiarolo wrote:

Are you sure? XJ and TJ mounting systems would be very different, thus the rating difference possibly?

TW

Matt Macchiarolo wrote:

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