Originally Posted by WakeDude
I've been lurking for a few months now but it was time to become a member. I just wrapped up the paperwork on my first jeep, a 09 JKUR! I plan to pick it up Friday (4 hours away) and am looking to jump right in to modding it.
It is absolutely pristine and was a leased daily driver.. the only problem is the leasing company put a brand new set of sissy tires on it.
In the next few weeks I plan to add a 3" Teraflex lift, and new wheels and tires. Right now I'm looking at 17" Pro Comp 3036 machined alloy wheels and 35" Goodyear MT/R with Kevlar (if I can find any around here).
I've only got a few mins here, so this is gonna be quick and blunt: Why a 3" TF lift? You're getting into the realm of needing a new driveshaft, as well as adjustable ca's and tb's. A 2.5" lift will clear 35's just fine, and doesn't require as much, in terms of parts and $$, as a 3" lift will.
35's will kill your 3.8L engine's power. You'll need to spend ~ $1500 to regear, or Yugos will be smoking you on the freeway and up hills. You'll also need a rear bumper w/tire carrier to handle the weight of your spare. And if you plan on wheeling it more than casually, you should get a sleeve & gusset job on your front axle.
17" wheels with 35's will blow up your wallet. You can get tires AND wheels in the 15" or 16" size for the same $$, or less, than you can 17" TIRES alone.
My question is.... everything suggests 4.50 backspacing. The wheels come in 4.75 and 5", but I was looking at adding 1.5" Spidertrax spacers. I thought I remember reading somewhere on the forums that spacers = roughly the same amount in backspacing. So that would mean my backspacing would be 3.25 or 3.5 (depending on which wheel I chose)? Is 3.25 putting too much stress on everything even with high quality spacers?
You're right about the bs/spacer correlation. 3.25" bs will put more stress on your ball joints. Even 3.5" bs isn't great. Your tires will exceed the fenders, and every bit of road crap will paint the sides of your Jeep whenever the pavement is wet.
Why not get wheels with 4" or so of bs, and ditch the spacers. Spidertrax makes good spacers, but they still require you to periodically check them for torque. PIA, IMHO. Up to you.
Also, I plan to attempt to install the lift myself, both to learn everything I can about my jeep and because I would rather spend the money on new tools than taking it to a shop. However I may take it in afterward to check alignment. Are there any good comprehensive guides or videos for a 3" teraflex install?
Google "TeraFlex 3" lift install jeep jk"...they've got install videos for their 2.5" lifts and leveling kits that I know of.
One crucial thing: don't tighten up track bars/ control arms to proper torque till you have the Jeep sitting on it's own weight on the ground, or you risk putting binding on the bushings, which is a recipe for Death Wobble.
Make sure you read this both of these threads, or you may one day require the services of a tow truck:
Diagnosing Death Wobble and Fixing Non-DW Shimmies and Wobbles
The Importance of changing out stock bolts!!