Just pulled the trigger on some Sulastic Rubber Springs - Ford Powerstroke Diesel Forum
Suspension & Steering Discuss OEM & aftermarket suspension, lifts, air ride suspension, shocks, steering components, etc.

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post #1 of 33 Old 04-03-2013, 11:02 AM Thread Starter
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Just pulled the trigger on some Sulastic Rubber Springs

I just pulled the trigger on some Sulastic rubber spings. I'm nervous that it's all hype but I guess I'll find out soon. I'm just getting tired of the crazy bounciness on these concrete highways and the fact that my wife absolutely hates riding in the truck because it makes her nauseous.

I replaced the shocks last weekend with some Bilsteins but they made no difference on these concrete expansion joints. And I've tried various tire pressures but no joy. And so I'm really hoping these Sulastics will help.
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post #2 of 33 Old 04-03-2013, 12:15 PM
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Let us know how they perform, good or bad.

06 KR 250
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post #3 of 33 Old 04-03-2013, 04:31 PM
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Are these the same as the old velvet ride shackles? I honestly do not understand how these can help, but I am curious to see what the results will be.

03 F350 7.3L Auto CC LB Dually 410's (LS Rear)315's

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post #4 of 33 Old 04-04-2013, 06:40 AM Thread Starter
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Yeah, I think they are INFRNL. From what I've read, the Velvet Ride's were manufactured by BF Goodrich but then Lord Corporation bought the line from Goodrich. Lord then discontinued them back in 2004 or 2005. They are "similar" designs but same function. The Velvet Ride shackles torsilastic section looks to be smaller or there is much less of it than the Sulastics.

Velvet Ride Shackles
Sulastic Rubber Springs

Time will tell how they hold up. I have my doubts but I'm reading that some people have gone 90k+ miles on them with no issues. If they fail after the warranty is up then I'll put my old shackles back on and burn out the rubber to see exactly what they look like on the inside.

I'm not looking for a Cadillac type ride. It's a truck. But if I can tame the rear end down just a little I'll be a happy guy.
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post #5 of 33 Old 04-04-2013, 08:21 AM
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Where do you live at? Just curious if it is in the Seattle area in Washington, those expansion joints suck up there!

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You will get some axle wrap with a heavy trailer, I can feel it when towing my gooseneck with some heavy equipment. My Deavers will wrap enough to make the tires rub the front of the rear fender well if I give it too much throttle on aceleration.
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post #6 of 33 Old 04-04-2013, 09:27 AM Thread Starter
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I live outside of Denver. Lots and lots of concrete highway.

I've been through Seattle on the way to Whidbey but only ever in a car and can't imagine how that would be in this truck. haha!

Last edited by Soledad; 04-04-2013 at 09:34 AM.
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post #7 of 33 Old 04-04-2013, 11:06 AM
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Quote:
Originally Posted by Soledad View Post
I live outside of Denver. Lots and lots of concrete highway.

I've been through Seattle on the way to Whidbey but only ever in a car and can't imagine how that would be in this truck. haha!
I was wondering if you were in co when you first posted, lol. Our concrete rds in co sick the big one

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post #8 of 33 Old 04-04-2013, 11:09 AM
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i had them on my truck... they didnt help at all....

custom valving for the shocks and softer springs was the only way i fixed the issue... i had crazy bouncing as well...
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post #9 of 33 Old 04-04-2013, 11:26 AM Thread Starter
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Originally Posted by Raul@Stealth Automotive View Post
i had them on my truck... they didnt help at all....
Yeah, from all of the reading I've been doing, it seems that it's helped some and not others. I'm hoping that I'm in that percentile where it actually does help.

I just noticed the F250's use SA-06 and the F350's use SA-06HD and so I wonder if the durometer measurement between the two is different? Maybe slightly lower for the 250's and a little higher for the 350's? Or no difference at all?

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post #10 of 33 Old 04-04-2013, 11:30 AM
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sorry for to link to outside forum but this issue was talked about reciently...Link...on a side note I feel your pain I have a dually with a flat bed it is so bad my kids love to ride in my truck and "sing" cause it makes their voice sound funny

What this nation needs is cleaner thoughts and dirtier fingernails...
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