I was looking at these coil springs I got from ARB. One is definitely taller, at first I was freakin out but I called Rocky-Road and they said they were supposed to be like that. Says the taller one goes on the drivers side to hold my fat *** up. This is my second build, the first was a YJ and didn't have to deal with coils so I don't know any better. Has anyone heard of this? I would hate to have my baby sittin cockeyed.

 

Never heard that before and mine as well as all the others I've built have had the same size coils. I call BS on that one.

 

I have heard of this. Not on jeeps but it does make sense. The driver side usually sags first. And those could are so close u won't be able to tell.

 

What happens if your passenger is fat and the driver is skinny? Do you have to swap the springs.

 

Lol Luckily my girlfriend is a buck twenty and I'm two and a quarter. She sat on one to see if it was the same height with the weight of a person. I thought she was batty, as usual, but they did look the same with her weight on the taller one. Seriously though I tend to be a perfectionist with these types of things, and if she (jeep, not girlfriend)sits even a little uneven I'll notice, and it'll bug the crap outta me. The springs do have all the same markings/numbers on them. Except one is marked A and one B.

 

Over time u will have had more weight on driver side than passenger.

 

On a serious note, i don't think they should be different.
Would a manufacturer go to the extend to manufacture different sizes coil....NO!

 

On Cherokees the passenger side is the side the receives more torque.this is why the passenger side leafs are usually sagging more than the drivers.one coil a bit longer than the other is common on Cherokee applications and is meant to be installed on the passenger side..

 

Not on my factory coils nor my RC coils.

Here is a test....
Call up ANY vendor and ask them for one coil spring.....i bet they won't ask you which side do you want.

 

Your correct there not longer on the coils you mentioned,but on quality coils they are and the longer coil is meant for the passenger side on a XJ, since it's the side that receives more torque when accelerating and while in 4x. most vendors are not even aware one is longer or where the longer one needs to be installed. the manufacture's most certainly are

 

What do you consider quality coils because I've installed RE, Rock Krawler, Rusty's, Pro Comp, Skyjacker and RC which I know you aren't talking about and all of those used coils that are the same size.

 

Hmm, that's weird. The dude at Rocky Road says to put the longer coil on the drivers side.

 

Bryan peake
1:01 AM (0 minutes ago)

to tech
I recently ordered a lift kit for my 1999 Jeep Cherokee XJ from a company called Rocky-Road outfitters http://www.rocky-road.com/ . The kit came with four OME springs. Looking at the coil springs (front) I noticed that one was taller than the other. Both springs are tagged with the same numbers/markings, except for one is marked A and the other is marked B. The gentleman at Rocky Road told me the longer spring (marked A) goes on the drivers side, with the intention of countering the drivers weight. This makes sense, however, another gentlemen, from whom I seek technical advice, insists that the taller spring goes on the passenger side because it receives more torque during acceleration. I would hate to spend all this money, and time, and have my vehicle sitting cockeyed. My questions is, is one spring really supposed to be taller than the other, and if so, which side does the taller spring go on?

Thank You, Bryan Peake


We'll see whats the deal fo real

 

If you check the factory build sheet for your XJ, you will see 4 different spring code numbers (Lf, Rf, Lr and Rr). It is common for ARB (Old Man Emu) springs to have a slightly taller spring for the drivers side. It offsets the extra weight of the driver, master cylinder/brake booster and steering box/column. When I installed my Rusty's coils (which were both the same height) I had to install a 10mm spacer on the drivers side to level the truck. It wasn't noticable by eye, but when parked on a level surface and measured from the pinch weld to the ground it was not level without the spacer.

 

This is funny.