on a '95 YJ
OK, here are the before and after numbers:
|Bottom of front bumper||19.25"||27.75"|
|Bottom of front fender flare||31.25"||39.875"|
|Bottom of rocker panel||19"||26.25"|
|Bottom of skid plate||11.25"||18.5"|
|Bottom of rear fender flare||32.75"||39.625"|
|Bottom of rear bumper||18.75"||24.75"|
|Top of tire, loaded, at 30psi|
|Goodyear Wrangler 225/75R15||27.25"||-|
|BFG MT 33x9.50R15||-||32"|
|Wheel travel at center of hub cap|
The rear axle articulation is about the same as it was before I installed the add-a-leaves last year. The front articulation gained about 0.5" over stock. The SOA lifted the front 6" and the rear 5.25" due to the taller OEM front spring perches. My rear add-a-leaves had sagged more than the fronts since I installed them last year.
Two months and three trail rides after completing the lift, I was finally able to ramp it on our Jeep club's 30-degree RTI ramp. Just before installation, I was able to score 310 with the tires at 28 psi. After the SOA, I scored 514 with 15 psi in the tires. Lower tire pressure allows the tires to compress more, which will improve your score slightly. Still, that's a 65% increase in axle articulation. Those scores translate to 454 and 753 on a 20-degree ramp. What held me up, you ask? My rear driver side e-brake cable is too short and needs to be lengthened, but the above test was done with that wheel under compression so it wasn't an issue. I think the front track bar is limiting travel up front, which can be solved by an adjustable track bar like that from M.O.R.E. I'm just barely touching the stubby front bump stop on the rear springs, but not enough to hamper up travel. I think the main thing limiting articulation now is my inflexible spring packs (thanks mostly to my full-length add-a-leaves). Overall, I'm happy with those results. Any more flex would make things awfully tipsy on off-camber trails. With one or two lockers, that'll be plenty of articulation to take me anywhere I want to go.
For comparison, here's a shot of my YJ in stock trim
Here's a what the YJ looked like a couple years after the SOA
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created 21 Jun 1999
last updated 12 Jun 2008 Obi-Wan (email@example.com)