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🚀 Upgrade your truck’s rear suspension—because smooth rides aren’t just for the elite.
Sulastic Shock Absorber Shackles (model SA-06) replace traditional rear leaf spring shackles with advanced rubber springs that reduce vibration by 60-80%, improve vehicle stability by 20-30%, and decrease braking distance by up to 20%. Compatible with key Ford, Chevrolet, GMC, and E-350 models from 1980-2023, these shackles deliver a smoother, quieter ride without sacrificing load or towing capacity—perfect for professionals demanding performance and comfort in all weather conditions.
| ASIN | B07TDSPBMK |
| Auto Part Position | Rear |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #877,486 in Automotive ( See Top 100 in Automotive ) #385 in Automotive Replacement Chassis Shackles & Parts |
| Brand | Sulastic Rubber Springs |
| Customer Reviews | 4.3 4.3 out of 5 stars (38) |
| Date First Available | June 21, 2019 |
| Exterior Finish | Painted: Black |
| Item Weight | 16.7 pounds |
| Item model number | SA-06 |
| Manufacturer | Sulastic Rubber Springs |
| Manufacturer Part Number | SA-06 |
| Material | Rubber |
| Package Dimensions | 11.26 x 9.06 x 6.34 inches |
| Set Name | True |
| Style | Basic |
| Vehicle Service Type | Truck |
M**Y
Wasn't easy to install, but works as advertised
Without a lift or high (tall) jackstands, the install was an absolute bitch and a half. But I stuck with it because of the payoff. Took a good day of working on it to get my parts out, grind a little metal to encourage the spring to seat and then pay attention to the number of washers and orientation when putting the new ones in. With all of that said, I've definitively felt a softer ride in my 2500. I take bumps smoother and the road is a little kinder now. Also did Fox 2.0 all the way around afterwards, and I ride like a new 1500 now. Very satisfied. Let's hope they last a while.
C**W
Fixed rear end bucking
Definitely worth the price! I have a 12” lifted superduty and the rear end is way too stiff and these work so well! Had a bad rear and buck on the freeway and this is the problem solver
R**N
These are a perfect item for HD suspension.
These are an absolute game changer! They seem a little pricey but believe me they are worth every penny. These were my 2nd set. Installation is a little difficult without a lift but my daughter helped me and it was 3 hours. GMC 2025 AT4x HD 2500.
S**M
Do not buy
Installed on a 2005 F250 4WD standard cab. Truck rode terrible before the install. No noticeable improvement after the install. Tried adding an additional 325 lbs of wight in the bed to improve ride. After the install the truck was all over the road with rear end sway. Once removed drive ability improved. A waste of money now sitting in a box on the parts shelf.
J**P
Ride changing improvement!
Great ride improvement , Having a lift really made the install easier.
W**E
Wow!
Very easy install, with simple hand tools it only took me about 2 hours from start to finish. You do need to raise the bed about an inch and a half to get the bolts out of the springs but it is simple. I have a 2016 crew cab 4X4 Duramax. Day and night difference in ride quality. My only regret is that I didn't do this sooner.
D**D
WOW! They are great!!
Ford should put these on during truck building.. These are a must for f250 Super Duty.. So nice!
C**Y
Great shackle
Probably most noticeable upgrade I’ve ever put on a truck! Absolutely gave it a better ride!
Trustpilot
2 weeks ago
2 days ago