OE rear coils, which goes on which side?

I put the OE suspension back on the truck, but when I did, I noticed that I still have the Cruiser lean to the left, despite putting 20mm of OME spacers on that side (though I also put 10mm on the right side). I noticed before I put them back in that the coil winds seemed slightly different, and one coil was marked with paint (two green and one pink splotch, or vice versa, can't remember). I assumed that meant they were different side to side (even though the OME coils which had just come out were identical to each other). Of course, when I originally pulled them to put on the OME coils years ago, I never marked them, thinking they would never go back in the vehicle. Paying for that now I guess. Anyway, I just made a guess and put the painted coil on the left side with that 20mm of spacers.

So my question is, does the marked coil actually go on the right (passenger) side instead? Or should I just remove that 10mm puck on the right side to balance it out. It seems odd that I would need 20mm on the left side and none on the right to get it even, I don't remember it leaning that much, but maybe I'm wrong. Any thoughts?

Thanks,

Derek

I heard that the longer one goes on the gas tank side.

LH (in US terms at least) is longer.

According to this post from atlgapdo, https://forum.ih8mud.com/100-series...difference-rear-coil-springs.html#post6518856,
"Both have 2 green dots on one coil and the# 48231-6A690 (left) has a pink dot and the 48231-6A680 (right) has another green dot on the next coil down."

See below for more detail on part numbers and length/height differences:
https://forum.ih8mud.com/100-series-cruisers/472479-there-difference-rear-coil-springs.html
and this post in particular:
https://forum.ih8mud.com/100-series...difference-rear-coil-springs.html#post6512097

As far as reasining, I believe pfran is correct - gas tank on the left = more weight to offset. Not sure if gas tank is always on the drivers side though (if it is then perhaps it's the combination of driver's weight and gas tank that led to taller spring on that side).

I will also point out a couple of lessons I learned with regard to vehicle height adjustments:
1) make sure you are on a level surface. I thought my garage was close enough but it was over very far off (over half in in on one wheel). This skewed measurements significantly. If you are looking for accuracy, here's the approach I took - I used a 4 ft level to find the high spot, had a self leveling laser that projects the beam horizontally and put that level on the high spot, then took a straight stick of wood and placed it in right at the high spot's wheel, then at the point of each other wheel (I marked off each wheel's location in the garage), then I had reference heights so I knew how much to raise each other wheel and used 1/8, 1/4, 1/2, 3/4 inch pieces of plywood combined at each tire to level it off.

2) front geometry can effect rear geometry. In other words, if your rear right is too high, it is possible that it is due to your front left being too low. Therefore, once you have a level surface, check that your front right and front left are level. If they are, then you eliminated the effect of your front geometry. If they are not, you need to level off your front b/f thinking about the back (unless you have the wrong coils/spacers to begin with).

3) Make sure the vehicle's tank is full when measuring, and that the vehicle is not loaded with other junk that might effect the geometry unless you plan to always have that junk in that spot.

Now I need to go look! I thought the rears were the same, at least with the OME 866's.

OregonLC said:

Now I need to go look! I thought the rears were the same, at least with the OME 866's.

Click to expand...

Can't speak to the OME rears, but I can tell you for a fact that the OEM rears are different.

Curious to know what you find out about OMEs.

Thanks, I read those other posts. So it seems that the coil with the pink dot goes on the driver side (left side, same side as fuel tank)?

If so, I think I am OK as that is how I installed them (pink on the left). Can't read the part numbers as they are worn off. Anyway, I guess I had a lot more lean in stock form than I remembered (like almost an inch difference right to left). If I take out the 10mm spacer on the right side, combined with the 20mm I added on the left, that should help. Will try that tonight and report back.

Make sure you're on a truly level surface to begin with - sounds trivial but you'd be surprised how unlevel most surfaces really are.
Also confirm that right to left in the front is level b/f adjusting anything in the rear - that front end could be skewing the opposite rear end.

just my .02.