[DeTomaso] Poly vs. Rubber suspension bushings

[Mike Drew]

Richard,

Not quite. You can’t easily increase caster with the bushings. But it’s easy to increase caster by simply machining .100” off the back side of the upper front ball joints. I believe Jack DeRyke pioneered this, although I’m not sure. 

I’ve done it on every car I’ve worked on, with great effect. 

Mike

Sent from my iPad

> On Apr 9, 2020, at 13:15, "richard at richardgreenblum.com" <richard at richardgreenblum.com> wrote:
> 
> The only downside I see to the rubber bushings is you can’t increase caster.
> 
> Richard
> Austin, TX
> 
> 
>> On Apr 9, 2020, at 14:13, Paul A Rimov <rimovp at gmail.com> wrote:
>> 
>> Million dollar super cars that have vastly more sophisticated suspensions and chassis still use rubber bushings. 
>> 
>> rimovp at gmail.com
>> 
>> 
>> 
>>>> On Apr 9, 2020, at 12:30 AM, charlesmccall at gmail.com wrote:
>>> 
>>>    Hi all
>>> 
>>> I decided to take advantage of being away from my car to fix a
>>> long-time engine oil leak by removing my suspension, radiator, etc
>>> 😊
>>> 
>>> 
>>> You know how these things go... I asked the guy to check the car over
>>> while he had the engine out, and the task list is growing, so my car is
>>> in a bunch of pieces right now.
>>> 
>>> 
>>> Mike Drew is helping source parts for me, and he asked if I wanted poly
>>> or rubber bushings. I know that this subject has been discussed a
>>> million times, but I didn't take notes. My specific question:
>>> 
>>> 
>>>  1. Is it commonly accepted that poly is better but will squeak without
>>>     proper lubrication? Rubber is maintenance-free but degrades over
>>>     time and doesn't work quite as well?
>>>  2. How difficult is it to lubricate them? Is this a matter of
>>>     installing a zerk fitting and zapping it once a year? Do you wipe
>>>     it on? How easy is it to access them without a lift?
>>> 
>>> Thank you!
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