Originally Posted by RMC_xj
I feel like I'm missing something here; can you draw a diagram or a word picture? I've got a brand new HD set up yet to be installed, but I want to do it right the first time - I want to maintain the stock rake, but I'm not sure how many spacers I'll need, if at all.
OK I will do my best to explain the use of the rear spring spacers....
When you remove your rear springs there will be a rubber isolator at the top and the bottom of the springs...these are used to eliminate metal on metal contact. If you stack several of the rubber isolators on top of each other you get a rear lift.
In your situation I would install the OME HD and replace the old isolators with new ones....you will need 4 total...2 on each side, 1 at the top and 1 at the bottom of the spring.
I would then drive the vehicle for several thousand kms and then see where the OME HD settles....My diesel after a year was riding lower in the rear. It was lower on the driver side than the passenger side. At this point I added some more of the isolators to eliminate the sag.
Below is the picture of the driver side rear spring.....as you can see I have 2 new spring isolators at the bottom...I have 2 new ones at the top...on the pax side I will 2 new on the bottom and 1 new one at the top....
These will eventually wear out as all rubber does, but it will be many many miles from know....
I used a spring clamp compressor to get them in...I am thinking anymore than 4 and you will need to drop the rear axle.