Long reply just got eaten by the "The application Mozilla has
unexpectedly quit" monster.

Summation: Delrin AF is what we used to keep the suspension on racecars
for moving in unexpected directions. It's been twenty years since I
built racecars. Plastics have improved. Call your local plastics
supplier and ask to speak with an application engineer.  With his/her
help, select that correct engineered plastic for the application. A good
place to start is <http://plastics.dupont.com>.

Polyurethane might be the correct selection, or it might be the Bosch
009 solution. There may be many reasons why polyurethane is being used
to commercially manufacture suspension bushings.  Ease of molding
springs immediately to mind.  Keep tha manufacturing costs down. In the
case of a one-off or limited production run this may not be part of the
equation. The application engineer is the expert.

Jim

Leon Korkin wrote:
> You must be kidding,
> delrin is good bearing material, NOT bushing material.
> Urethane is ideal material for bushings.
> Leon
> 85 Subwagen Westy
>
>
> 9/10/02 9:28:27 PM, Jim Arnott <jrasite@EONI.COM> wrote:
>
>
>>Make your own.  Pick up a bar of Delrin at your local plastics house,
>>find a machinist and an hour later you got your bushings. (Urethane is
>>good, Delrin is better! Delrin is self lubricating.)
>>
>>Heck, I got a lathe, send me the dimensions and I'll make up a handful
>>of them.
>>
>>Jim
>>
>>Kevin Dawson wrote:
>>
>>>Hi all,
>>>I need to replace my upper control arm bushes and I think I remember reading
>>>that someone on the list had replaced theirs with some aftermarket urethane
>>>bushes.  I love urethane.  I've found anti-sway bushes, tie rod and ball
>>>joint replacement bootees in urethane.  Does anyone on the list know of other
>>>Vanagon parts that can be had in urethane?  How about the upper control arm
>>>bushes?  I'm not a big fan of "metalastic"  as the OEM upper inner bushes are
>>>constructed.  On my British car I've found that a lot of the repo parts with
>>>rubber from Taiwan just don't hold up worth a dam.  The high ozone we have
>>>here in Southern California makes poor quality rubber go away in short time.
>>>Urethane holds up and is often less or the same cost as OEM.  I don't like to
>>>do a job more often than I can get away with.
>>>Please email me at Calwolfie@aol.com
>>>Thanks,
>>>
>>>Kevin Dawson
>>>87' 1/2 Camper
>>>74 1/2 TR-6
>>>
>>>.
>>>
>>
>>
>
> .
>