Rubber or urethane bushings - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**FL71C10** · 12-15-2010, 06:48 PM

I am getting ready to redo the suspension on my truck and am not use if I should use rubber or urethane bushings on the control arms and trailing arms. Will the truck ride real rough with urethane? I want it to be tight but not teeth rattling.

Also, where's good place to get them. Napa only sells control arm shafts and they are pricey!

Thanks!

**special-K** · 12-15-2010, 08:12 PM

It will be a more firm ride,but not really harsh.I like urethane in the suspension,but not the body mounts.

**FL71C10** · 12-15-2010, 08:42 PM

What suspension parts can you replace with urethane besides the trailing arm bushings?
Posted via Mobile Device

**FL71C10** · 12-15-2010, 09:59 PM

anyone else have any thoughts on this?

LONGHAIR · 12-16-2010, 06:38 PM

Quote:

Originally Posted by FL71C10

What suspension parts can you replace with urethane besides the trailing arm bushings?
Posted via Mobile Device

Upper and lower control arm bushings
Sway bar bushings and end-links

Stubbs67 · 12-16-2010, 06:50 PM

when you install them, grease them, and their pins/spacers washers etc with white lithium grease. haven't had any of mine squeak... to me it doesnt feel for firm, it just feels tighter and more responsive with urethane.

1968SWBBigBlock · 12-15-2010, 10:28 PM

FL -= you can buy almost every bushing for these trucks in urethane
I agree - I am not a fan of urethane body mounts - just to stiff - if you just want to race the truck go for it - daily driver no thanks - they also can have a tendency to squeak more than rubber bushings

helldiablo · 12-16-2010, 09:58 AM

i went with urethane in the suspension and motor mounts... but not the body mounts they were still in good shape... i might change them later on... it did squeak for a little while like 1000mi but dosent any more..

*lakeroadster* · 12-16-2010, 10:34 AM

I prefer rubber bushings. I have used urethane on other projects and regretted it: harsher ride and noise issues.

cadillacart · 12-16-2010, 10:56 AM

Same here, I have had bad luck with poly, I could not stand the noise. I have tried first dry graphite lubrication and when that didn't work, I greased everything up and it still squeaked off and on.

**specialtyretail** · 12-16-2010, 11:12 AM

Rubber worked for years from the factory... I would stay with them.

scooterskoolkustoms · 12-16-2010, 11:20 AM

I prefer urethane. I have used both but just like the feel of the urethane ones my 2 cents.

poff · 12-16-2010, 06:01 PM

I have urethane mounts everywhere in my truck, springs, motor mounts, body mounts, T-case. They are way more durable then rubber. Rubber these days is such poor quality. I can't hear anything over the exhaust so I don't care about squeaking. I do feel the cam lope through the motor mounts at idle but it's a truck not a Cadillac.

capev86 · 12-16-2010, 08:17 PM

urethane lasts longer and tightens up the chassis (less flex than rubber) and should be fine if properly lubricated. i replaced the rear track bar bushings on my 72 burb c20 (CPP has the larger ones for the 3/4 ton track bar). planning to get their poly graphite body mount bushings as mine are rotted and i don't want to spend lots of money on rubber. looking for (extreme) long term durability as my truck gets nothing but the best and i'm not worried about a little squeaking (no helping that on a 38 year old truck anyway).

12-15-2010, 06:48 PM	#1
FL71C10 Senior Member Join Date: Jun 2010 Location: Orlando, Florida Posts: 2,508	Rubber or urethane bushings I am getting ready to redo the suspension on my truck and am not use if I should use rubber or urethane bushings on the control arms and trailing arms. Will the truck ride real rough with urethane? I want it to be tight but not teeth rattling. Also, where's good place to get them. Napa only sells control arm shafts and they are pricey! Thanks! __________________ 71 Chevy C10 Shortbed Stepside. LT1 with 4l60E. Just got back from painter, in assembly now.

12-15-2010, 08:12 PM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Re: Rubber or urethane bushings It will be a more firm ride,but not really harsh.I like urethane in the suspension,but not the body mounts. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

12-15-2010, 08:42 PM	#3
FL71C10 Senior Member Join Date: Jun 2010 Location: Orlando, Florida Posts: 2,508	Re: Rubber or urethane bushings What suspension parts can you replace with urethane besides the trailing arm bushings? Posted via Mobile Device __________________ 71 Chevy C10 Shortbed Stepside. LT1 with 4l60E. Just got back from painter, in assembly now.

12-15-2010, 09:59 PM	#4
FL71C10 Senior Member Join Date: Jun 2010 Location: Orlando, Florida Posts: 2,508	Re: Rubber or urethane bushings anyone else have any thoughts on this? __________________ 71 Chevy C10 Shortbed Stepside. LT1 with 4l60E. Just got back from painter, in assembly now.

12-16-2010, 06:50 PM	#6
Stubbs67 Registered User Join Date: Nov 2010 Location: Venus, Tx Posts: 121	Re: Rubber or urethane bushings when you install them, grease them, and their pins/spacers washers etc with white lithium grease. haven't had any of mine squeak... to me it doesnt feel for firm, it just feels tighter and more responsive with urethane. __________________ 67 Short Step Project -My other wife, ya know... (she takes all my time and money and I don't even realize it) 88 Subaru wagon 4wd -Daily driver and workhorse 98 Subaru Forester S - Wife and baby wheels My Build Thread! http://67-72chevytrucks.com/vboard/s...d.php?t=433751 Need step tail gate and bed front, driver door, both front fenders (both are bondo'd nightmares). can trade fleetside bed parts real straight (except sides) or pay some cash (i am pretty broke)

12-15-2010, 10:28 PM	#7
1968SWBBigBlock Active Member Join Date: Oct 2006 Location: Ohio Posts: 1,643	Re: Rubber or urethane bushings FL -= you can buy almost every bushing for these trucks in urethane I agree - I am not a fan of urethane body mounts - just to stiff - if you just want to race the truck go for it - daily driver no thanks - they also can have a tendency to squeak more than rubber bushings __________________ 1968 SWB 454 + .040, 490HP x 540 FT pounds of Torque 10-1 Kb Forged pistons, recon rods w/ ARP wave loc bolts 781 heads Ported with 2.19/1.88 SSTvalves Lunati 60204 cam, Micro Trol lifters, Ported Edelbrock Performer Rpm manifold armor coated, Pertronix Triple Strike Ignition Holley 770 Street Avenger carb,Headers armor coated Built by Watson Ruppel Performance in Sarahsville Ohio. Hardshift Tranny Built Turbo 350,TSI 10" 3000 stall 12 Bolt Eaton Posi 4.10 Richmond Gears moser axles 18.5" x 31" Hoosier Pro Street Radials ET Classic 5 Wheels - polished Power Steering, Power Brakes,Disc Brakes,Tach & Gauge Dash, Tilt,Factory Air (gone) Custom Paint & Body Work Special thanks to my wife, my son and my money tree

12-16-2010, 09:58 AM	#8
helldiablo Registered User Join Date: Nov 2010 Location: northern california Posts: 105	Re: Rubber or urethane bushings i went with urethane in the suspension and motor mounts... but not the body mounts they were still in good shape... i might change them later on... it did squeak for a little while like 1000mi but dosent any more..

12-16-2010, 10:34 AM	#9
lakeroadster Account Suspended Join Date: Sep 2009 Location: High Plains of Colorado Posts: 2,485	Re: Rubber or urethane bushings I prefer rubber bushings. I have used urethane on other projects and regretted it: harsher ride and noise issues.

12-16-2010, 10:56 AM	#10
cadillacart 1972 C/20 Join Date: May 2005 Location: Santa Rosa, Ca Posts: 273	Re: Rubber or urethane bushings Same here, I have had bad luck with poly, I could not stand the noise. I have tried first dry graphite lubrication and when that didn't work, I greased everything up and it still squeaked off and on. __________________ My Gallery 1972 C/20 402 Gramp's Truck

12-16-2010, 11:12 AM	#11
specialtyretail So,, what else you got??? Join Date: May 2010 Location: Jackson, Mo Posts: 18,635	Re: Rubber or urethane bushings Rubber worked for years from the factory... I would stay with them.

12-16-2010, 11:20 AM	#12
scooterskoolkustoms Registered User Join Date: Feb 2010 Location: so cal Posts: 436	Re: Rubber or urethane bushings I prefer urethane. I have used both but just like the feel of the urethane ones my 2 cents. __________________ big old burb in primer.lot of work to do.

12-16-2010, 06:01 PM	#13
poff Registered User Join Date: Dec 1999 Location: san diego, ca Posts: 546	Re: Rubber or urethane bushings I have urethane mounts everywhere in my truck, springs, motor mounts, body mounts, T-case. They are way more durable then rubber. Rubber these days is such poor quality. I can't hear anything over the exhaust so I don't care about squeaking. I do feel the cam lope through the motor mounts at idle but it's a truck not a Cadillac. __________________ '70 K-20 San Diego, CA

12-16-2010, 08:17 PM	#14
capev86 Registered User Join Date: May 2009 Location: Eliot, Maine Posts: 1,314	Re: Rubber or urethane bushings urethane lasts longer and tightens up the chassis (less flex than rubber) and should be fine if properly lubricated. i replaced the rear track bar bushings on my 72 burb c20 (CPP has the larger ones for the 3/4 ton track bar). planning to get their poly graphite body mount bushings as mine are rotted and i don't want to spend lots of money on rubber. looking for (extreme) long term durability as my truck gets nothing but the best and i'm not worried about a little squeaking (no helping that on a 38 year old truck anyway).



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