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07-15-2025, 02:35 AM
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#1 |
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Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 470
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Rear Trailing Arm Bushings: Stock Replacement or Poly?
Hi guys, considering buying poly bushings for my rear trailing arms.
Has anyone utilized these with success? Any additional NHV (noise/harshness/vibration)? The oem rubber bushings are a bit tougher to replace than poly. I'm considering ride quality and no wheel hop when traction is broken. Any advice? Thank you.
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1969 C10 Shortbed |
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07-15-2025, 05:41 PM
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#2 |
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Registered User
Join Date: Oct 2016
Location: Dallas Texas
Posts: 3,850
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Re: Rear Trailing Arm Bushings: Stock Replacement or Poly?
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It is my understanding that poly bushings for body mounts and suspension parts like sway bars, control arms, etc bring with them a level of firmness that many have reported is harsh due to the lack of give and so any forces/vibrations are transmitted directly into the body/chassis. For trailing arms though...it's a good question as I don't see how those joints would experience anything but some fore/aft shock/force with very little twisting action. Not sure what the extra firmness there would gain performance wise though. For a race machine though...you might be looking at a small fraction of a second quicker times in a straight line from the dig. Hth, -Kevin
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67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi 07 335 sport turbo 6sp 94 Trans Am GT LT1 6sp posi -- sold after 22yrs 99 540 sport V8 6sp -- sold 73 240z L24 4sp -- given to friend 68 C10 step 350/350 3.73 open -- sold |
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07-16-2025, 09:02 AM
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#3 |
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Registered User
Join Date: May 2016
Location: Waverly, NE
Posts: 562
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Re: Rear Trailing Arm Bushings: Stock Replacement or Poly?
Poly bushings still give, just not as much. I've had poly bushings in the rear control arms for about 20 years and it rides and drives just beautifully.
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1965 Malibu SS L79 Restoration Page 2004 Torrid Red GTO Preservation Page 2006 Brazen Orange GTO Preservation Page Rich Cummings |
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07-16-2025, 09:53 AM
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#4 |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,571
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Re: Rear Trailing Arm Bushings: Stock Replacement or Poly?
OE style rubber bushings or spherical joints for me. I do use Poly engine & trans mounts.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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07-17-2025, 02:21 AM
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#5 | |
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Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 470
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Re: Rear Trailing Arm Bushings: Stock Replacement or Poly?
Quote:
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1969 C10 Shortbed |
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07-17-2025, 10:09 AM
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#6 | |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,571
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Re: Rear Trailing Arm Bushings: Stock Replacement or Poly?
Quote:
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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07-17-2025, 11:14 AM
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#7 |
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Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 470
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Re: Rear Trailing Arm Bushings: Stock Replacement or Poly?
For sure better than solid
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1969 C10 Shortbed |
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