Dave will respond, but I'm 150% sure he meant 2" from frame.
Correct.
Your skid is 3.25" from the bottom of the frame and your drive shaft is at the bind point when the axle is hanging from the bottomed out shocks. 2" bumpstop extension is used.
Dave will respond, but I'm 150% sure he meant 2" from frame.
Whatever Dave.Lol.... you'll find after driving a tj with simple short arm geometry correction, it's much more stable than the tj savvy rear mid arm is without even having a sway bar on it. I have done several of them, frankly, I don't like the feel of it on a tj, it's much better on the LJ. One of the tj's I put together with the savvy kit got the rear upper control arm mounts redrilled to lower the arms because the owner complained about it acting like a boat.
Most long arm and mid arm kits don't even really address geometry, they are simply hyped up longer arms. Use a rokmen rock star, metal cloak, rubicon express for instance, stock separation at the axle. Rough country, fabtec and rusty's perform better due to the antisquat obtained from sharing a bolt hole on the frame end. The rockmen is the best of the bunch if you add geometry correction brackets and do not redrill the lower control mount.. the left over downfall is 33" tires hit the front lower control arms.
If you want less antisquat with geometry correction, drill another hole 5/8 inch lower in the upper axle brackets.
I used to think the outboards and and tuned shocks was the best thing we could do. Turns out, it's a bandaid for bad geometry. Outboard shocks do nothing for stability or "flex" for that matter COMPARED to short arm geometry correction. No tuned shocks or special springs are needed for purposes of handling. Our real gains from outboard shocks are uptravel. We are able to max out 17.5-18" free length springs and still land on a 2" bumpstop extension, compared to maxed out springs and 4-5" of bumpstop extension from shocks that bolt in the stock mounts. Add in tuned shocks, now you really have something to be proud of.
We do not have anywhere near any over extended arm issues with rear short arm geometry correction. It sits at full droop with less control arm angle with 12" outboard shocks than the savvy mid arm does at ride height with a 4" lift. We run out of drive shaft due to a bound up 16" double cardan shafts before the short arms with geometry correction get to the point they aren't working anymore.
If you run a line at a 4" lift ride height, the geometry corrected lower short arms hit the frame 36" from the bolt center on the rear axle mount.
I'm sorry people don't understand this or see what's actually happening and I'm surprised when it's coming from those whom supposedly understand rear suspension geometry. Some are simply blinded by the track bar still being used.
Are these rigs identical other than the suspension? Tires? Weight? EtcWhatever Dave.
Here is your geometry correction kit. This was after 6-7 attempts.
This is my Savvy mid arm. This was the second hit.
We did this little climb twice. Same results each time. Tell me more about stability.
Very closeAre these rigs identical other than the suspension? Tires? Weight? Etc
The first video reminded me of the first time my son's took his K-30 truck out to wheel and he didn't have any rear shock absorbers installed (waiting to be delivered) Bouncy!Whatever Dave.
Here is your geometry correction kit. This was after 6-7 attempts.
This is my Savvy mid arm. This was the second hit.
We did this little climb twice. Same results each time. Tell me more about stability.
Same tires. Mine should have been around 8-9psi. The others should be close.Same tires? Same pressures?
I was told that shocks can tame wheel hop. jjvw, your video show a little bounce, but not as much as starkey 480. Tuned Fox vs 5000x might make a difference?
I used to think the outboards and and tuned shocks was the best thing we could do. Turns out, it's a bandaid for bad geometry. Outboard shocks do nothing for stability or "flex" for that matter COMPARED to short arm geometry correction. No tuned shocks or special springs are needed for purposes of handling.
Isn't that contrary to this?
For an apples to apples comparison, they should be running the same shocks and the same driver / technique.I was told that shocks can tame wheel hop. jjvw, your video show a little bounce, but not as much as starkey 480. Tuned Fox vs 5000x might make a difference?
Rubicon vs Sport, different rear gears. Auto vs manual.For an apples to apples comparison, they should be running the same shocks and the same driver / technique.
add: gearing, transfer case, transmission all same?
I don't know. Ask Dave.I was told that shocks can tame wheel hop. jjvw, your video show a little bounce, but not as much as starkey 480. Tuned Fox vs 5000x might make a difference?
Rasband was an LJ thoughI’m all for transparency and comparison because I think it’s fun to see. But let’s lay out all the truth and factors first. I can’t remember how many times either of us failed but I looked back and I have exactly 2 videos of myself failing and 2 videos of @jjvw failing.
Josh’s rig absolutely climbed smoother on the successful attempt. My ego plays zero role in this but I enjoy fairness and transparancy.
Other factors to consider that play into a climb other than control arm angles.
Transfercase and wheel speed- Josh has a 241 I have a 231
Shocks- Josh has tuned fox 12s. I have rancho 5000x
Line- Josh appears to be ever so slightly further left of the big bump and an inch is a mile on an obstacle like that.
Driver skill- Josh may have chosen a better amount of throttle than I did.
Tires- ours were the same
Wheelbase - not sure what mine is but I know Josh has done some minor stretching on his.
I’m not arguing that Josh's rig climbed smoother. Rather that it also failed a few times, there are other factors at play, and finally that the obstacle was an absolute fucking monster and kudos to all those that attempted it. @rasband is the only one that day in my opinion that absolutely walked right up first try. It dropped my jaw lol
True. On the record though I watched him wheel all day and he’s a hell of a driver.Rasband was an LJ though
Not disputing that. Just that the slightest line change combined with that wheelbase can mean the difference between a perfect climb and a perfect fail.True. On the record though I watched him wheel all day and he’s a hell of a driver.
