I sent some inquiries to Rock Krawler a while ago, and have yet to hear back from them. So I'm gonna post them up here and see if any of you guys with these RK systems can answer my questions. Here's the email.


Got a question for you. I am looking at either the 2.5 Max travel, or the 3.5 mid arm flex, and I am wondering the actual lift height you guys have seen/gotten feedback from. I have a 2010 JKUR, front steel stubby with winch, and stock rear, with a 35" on it. So not too much weight. I like both kits, but I'm trying to get an estimate with height, as a new DS is out of the question for a while after all the upgrades I'm getting. I'm thinking the 2.5 would be my best bet, with a set of 3/4 spacers. That way its not too high, and I also get the bonus of the progressive rate coils. However, if the 3.5 isn't gonna push me up too high, I would rather that than using spacers. Any suggestions? Also any suggestion on shock length with these 2 set ups? No heavy rock crawling, mostly expedition style overlanding, but sometimes crawling comes with the territory. Thanks for any info.

Any of you guys with these 2 specific lifts have similar weight and can tell me about how much real lift you got? Also, on the trail, where it will matter most, I will have about 100lbs of dog, 60ish pounds of tools,a large cooler, and passenger. Thanks ahead of time for any info.

-Aaron

 

I have the 2.5 Max Travel lift with front and rear steel bumpers and winch on a 2010 JKU with 35s. I netted 3.25" front and 2.75" rear. Sits about perfectly level.

I installed Fox 2.0 IFP 4-6" lift shocks with 2" bumpstops.

I like the setup. I don't get a chance to do a lot of rock crawling since I have to travel to get to rocks, but I do a variety of sandy trails, beach sand, mud, hills and rocks when I get a chance. Plenty of room with 35s, esp. with flat fenders.

A couple of pics, with stock fenders and bushwacker flats. I had a stock rear bumper with both of these pics. I now have an Ace pro series rear bumper which is a fairly heavy steel bumper and it dropped the rear about 1/8".

 

I run the 3.5" x factor on a 2010 JKUR also I ran the stock driveshafts for 2 full years with no issues. I do not run bump stops or limit straps and use every bit of flex the kit has. I think it generally nets closer to 4.5 front and 3.5 rear giving a level stance.

 

Thank you both for your input on these 2 lifts. Still on a toss-up. But I think I might go with the 2.5.

 

Phone is always the best way to get a quick answer FYI.

 

Rk responds on there facebook page same day. They even got me floor to roof height of the 2.5kit with 37 within a day or so

 

Any of you having rear springs bending. I have the 2.5 flex. Thinking u need rear control arms amd track bar. Also I have the older springs are the new triples worth upgrading to. Thanks. Sorry to hijack.

 

The max travel includes rear adjustable lca's and extended rear sway bar links which I think is the major difference with the flex.

I'd also be interested to hear how the new triple rate springs compare.

 

Bump for answer. Not sure of differance of new 3 spring and progressive. Also for the bend n my springs I think it's due to extra weight. What is best way to fix.