Re: 56 Rear Torque Arm Bushiongs

Posted by HH56 On 2017/12/11 19:40:59

Just read an interesting article re TL suspension by Dwight Heinmuller with contributions by others in the Nov issue of the PAC News Bulletin. He goes thru some of the common maladies many have been discussing here the last year or two such as shocks, ride height and continually wanting to level.

In consultations with engineering types they have come up with some some interesting tidbits about rubber and polyurethane bushings and how they all interact to cause the issues. Gist of which is condition of rubber is extremely important, poly is superior to rubber and, as O_D proved earlier in this thread, durometer or hardness of the rubber and poly bushings is very important. There is also a bit on the shocks with a specific recommendation of a modern replacement and the reason why.

I am not shilling for him but since some have asked about availability of poly bushings before, Dwight mentions a poly kit for the rear that he and the engineer consultants developed that he is going to carry (or is already but I didn't see them on his website yet).

Looking into the rubber condition and maybe changing it out might go a long way to reduce some of the problems. The front bushings in poly are apparently superior to rubber but problematic in mfg to be cost effective but he does offer a rubber type.