Marblejunkie
Riverbank, California
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Joined: 04/22/2007
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I obtained no response from an earlier post about Sulastic Rubber Springs, but decided to give them a try. What a difference!
The DW is as happy as a clam! Quote: "My body don't jiggle no more and there are no aftershocks!"
The ride is 50% to 60% dampened over the stock shackles. The receiver hitch had to be dropped just to remove the shackle bolts and install the new Sulastics. Torsion bar adjusted up 1/4". Height difference in front is +1" and in the rear +5/8". Running air pressure of 65# front and 55# rear when empty.
Pricey but extremely effective and worth it in our book...
Here's a link to the installation.
Smoother Ride
2007 Cougar 243RKS
2007 Chevy Silverado Classic 2500HD 4WD LT3 D/A LBZ Equalizer WD Honda EU2000i
Sherline Scale 2004 Suburban Sold Hayes Genesis Brake Controller DuraFlap Mudflaps Sulastic Rubber Springs Nicktane Fuel System
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6MISFITZ
Fort Erie, ON, CANADA
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Joined: 04/15/2003
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Thanks for the details and pictures of the installation as this is the first I have heard of this product.
Looks like a great upgrade from stock and glad it worked for your truck.
Have you done a test tow yet?
Any hitch adjustments needed?
Mike.
Mom, Dad, 4 kids, 2 Camping Dogs
Express 2500 LS (135"WB) 6.0L, 4.10, G80, PYO wheels, HENSLEY & McKesh
Prowler Regal 320DBHS w/QUAD BUNKS
MISFITZ RACING
MFCC Member
Rallies Attended 4, 7 Un-Rallies
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Marblejunkie
Riverbank, California
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Joined: 04/22/2007
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Not yet. Will tow again next weekend. In one of the pics you can see there is a "stop block" on the top of the Sulastic spring that keeps it from dropping too far when under a load. This will render the Sulastic spring to a fixed position, which is O.K. since the load will take away all of the bounce and vibration anyway. I never had an issue while towing, its always been while empty. The main benefit derived from these kits is when you are bouncing around without a load. Shouldn't have to make any hitch adjustments. BTW, this was a "drilless" installation.
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Marblejunkie
Riverbank, California
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Joined: 04/22/2007
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Update:
The springs have no effect when towing as the tongue weight eliminates any bouncing present when running empty. The stop block on the Sulastic prevents the leaf springs from dropping too far while towing.
Driving empty while commuting and on long freeway trips has really been a blessing. The DW even blurted out one day how much she is liking her new truck now since the ride is so smooth. Music to my ears!
If you are running stiff suspension that makes you sound like Woody Woodpecker, these springs are an option to resolution.
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Nor-Cal Nick
Livermore Ca.
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Joined: 08/27/2007
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Any new update. I have them on my truck since Jan 08 and all has been great. Same for you?
08 Chevy 3500HD Dually Duramax << Clink to see pic's
08 WW cr3905
06 Preditor 90cc- 8yold daughter
08 OutLaw 50cc- 3yold daughter
04 Honda CRF450R- Dad's
07 Honda CRF150F- Mom's
09 Raptor 700- Dad's
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Marblejunkie
Riverbank, California
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Hey Nick,
Everything is still working for me with the springs, it was a good investment for the comfort aspect...
Monty
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Nor-Cal Nick
Livermore Ca.
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Nice. I didn't know of many guys that have had them longer than you have. The 1 question everyone always asks is how long do they last so nice to keep up on how they are doing.
Hope all is well.
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CharlyG
West HIlls, Ca.
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Joined: 04/12/2006
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I like the idea, but they sure don't look like 350 dollar parts!
1998 Chevy C2500HD Silverado ECLB 75,000 miles 5.7L Vortec 4L80E 3.73 Posi 8600# GVWR
2004 Fleetwood Caravan 25S 6000# GVWR
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bob213
Fresno, CA
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Joined: 12/09/2007
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I've seen posts on other forums about these and they have all been positive. The shackle itself should last forever, but they reccommend replacing the bushings after 3 years.
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D MAX
Canada
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Joined: 01/30/2008
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Ya thank to Marblejunkie and Nick I did this about 3mths ago. Yup greatly improved the unloaded ride on a 2500HD when combined with Bilsteins. It may have softened up the truck a bit towing as I personally experience a bit more porpoising. I think I need to dial my hitch back in and it will be fine. As is though very little difference towing just some routine adjustments required on my behalf. (and for all I know it was the same (towing) before I just can't recall).
Cheers!
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