has any one used this stuff???

http://www.amazon.com/gp/product/B00029K20C

they look like they might work.....i have a OME on order, but still.....looks pretty cheap

Those just expand the spring in one place placing stress on that area and causing the other coils to compress more causing spring bind and faster degrading of coil strength. I used a set of rubber ones on my old 72 cutlass in the front when i had some too big of tires on it, made front end a little stiffer, enough to prevent rubbing, but not good on the springs. Some people use them to lower vehicle by pinching coil together.

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'99 Tahoe, 3" BL, 285/75/16's , MT II's.
'05 Liberty Sport, -wifey's
'98 Poncho Fireturd, 3.8L, .....the purple pig!

thats what i tought they did, i was at work and the guys were talking about them for some guys ranger, so i asked here.

You often find those things for sale in the trailer section of automotive stores. I guess the idea is to give your truck's rear coil springs extra height while towing. Kind of a "band aid" solution.

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my trail & highway ride (and occasional tow rig)
04 Liberty Sport with a 2.5" lift, ProComp 245/75R16 AT's and two Hella700FF lamps (more accessories to come)

my trail queen
95 YJ with a RE 4" lift, 33" ProComp Extreme's, M8000 Winch, Lockrite Locker up front, Super35 in the rear and 4.88 gears

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Cherokee 2,5 CRD: sold - Wrangler TJ 2.5: gone - Touareg V10 TDI: new toy

Solo Liberty en Español: Jeepliberty.es

They are illegal in the state I live in. Big Brother moves in mysterious ways.