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SILVER Star
OME 861/862 Stock Height Replacement Measurements
I installed Old Man Emu 861 (front) and 862 (rear) springs with N73 (front) and N74E (rear) shocks. This is the stock height replacement package. The data below might be useful for those considering this combination.
Vehicle: 1997 FZJ, 95,000 miles, relatively stock in terms of weight, 3rd row seats removed, about 50 lbs of tools in cargo area, 285/75 spare tire underneath, ½ tank of gas. OEM = original equipment manufacturer. OME = Old Man Emu
Height from center of hub to bottom side of fender flare (inches)
.................................LF..............RF.........LR............RR
OEM.................... 19.56........19.75....19.8 ....19.69
OME 861/862...20.56 .......20.8 ....21.0.....20.69
Height increase .1.0............1.05......1.2 .....1.0
Old OEM spring free height (inches). If your springs have sagged more than mine you might get more lift and vice versa.
................LF...............RF..............LR...............RR
OEM ..19.38........18.75........18.75..........18.5
Prior to the install I measured the distance between the floorboard and the shackle of the load sensing proportioning valve (LSPV). It was 8.75”. After the spring install it measured 9.75”, which was expected based on the 1” of lift referenced above. I adjusted the shackle 0.5” so it was 9.25” from the floorboard. The logic here was that my original suspension had sagged 0.5” and the OME corrected this plus provided another 0.5” of lift. So I tried to get the LSPV adjusted to where I think it was when the truck was brand new. This is my starting point. I’ll test the rear brake lockup or perhaps get pressure gauges and re-adjust the valve per the FSM.
The results: The ride is a little firmer, definitely less body roll, and just more solid. I am very pleased with the results.
As a preemptive response to “this thread is useless without pics” – 1”of lift isn’t that exciting to look at
I installed Old Man Emu 861 (front) and 862 (rear) springs with N73 (front) and N74E (rear) shocks. This is the stock height replacement package. The data below might be useful for those considering this combination.
Vehicle: 1997 FZJ, 95,000 miles, relatively stock in terms of weight, 3rd row seats removed, about 50 lbs of tools in cargo area, 285/75 spare tire underneath, ½ tank of gas. OEM = original equipment manufacturer. OME = Old Man Emu
Height from center of hub to bottom side of fender flare (inches)
.................................LF..............RF.........LR............RR
OEM.................... 19.56........19.75....19.8 ....19.69
OME 861/862...20.56 .......20.8 ....21.0.....20.69
Height increase .1.0............1.05......1.2 .....1.0
Old OEM spring free height (inches). If your springs have sagged more than mine you might get more lift and vice versa.
................LF...............RF..............LR...............RR
OEM ..19.38........18.75........18.75..........18.5
Prior to the install I measured the distance between the floorboard and the shackle of the load sensing proportioning valve (LSPV). It was 8.75”. After the spring install it measured 9.75”, which was expected based on the 1” of lift referenced above. I adjusted the shackle 0.5” so it was 9.25” from the floorboard. The logic here was that my original suspension had sagged 0.5” and the OME corrected this plus provided another 0.5” of lift. So I tried to get the LSPV adjusted to where I think it was when the truck was brand new. This is my starting point. I’ll test the rear brake lockup or perhaps get pressure gauges and re-adjust the valve per the FSM.
The results: The ride is a little firmer, definitely less body roll, and just more solid. I am very pleased with the results.
As a preemptive response to “this thread is useless without pics” – 1”of lift isn’t that exciting to look at
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