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Modified JK TechTech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.
PLEASE DO NOT START SHOW & TELL TYPE THREADS IN THIS FORUM
On a daily driver stick to 35's
As a rule of thumb I tell people to move from a stock jeep to 35's will cost $3-5k the move to 37's will run $10k-25K depending on your axles. You have 35's already but we really don't have any specifics. What 3.5" lift do you have? Are you running factory wheels or wheel adapters? You will also see more frequent maintance needed on ball joints, unit bearings, brake pads.
Some costs:
Gears $4000
Tires $2500
Wheels $500-$3000
upgraded steering $1000-$1500
big brake kit $1500
Driveshafts $1500
You don't need to do anything, especially for a DD. 37s and stock D44 Rubicon JK axles will be fine. People parrot a lot of upgrades that aren't needed until...they're needed, which isn't as common as people think. Stock steering is fine. You can even leave the 4.10s and it'll be fine on and offroad. Many of my friends have this exact setup (lift/gears/37s and otherwise stock axles assemblies) and have been running it for years. If your rear axle shaft flanges haven't bent...those tend to bend/warp on JKs. Chromoly shafts fix that problem.
What would I do, in your shoes? Regear it...thats it. Because that is what I did. When I went 37s I had a 3.5" lift. Added 37s, regeared and done. I went 4.88s and immediately regretted it...now I'm on 5.13s and changed to a 4" lift. Wheeled the rocks for years like that...Moab and Colorado road trips, trails and rock crawling and drove back home.
This is mine...now on 39s, 5.13s. I did upgrade to a dynatrac front axle housing (Nothing broke, I just wanted it)...but guess what? The axle shafts and all the guts are still STOCK from 2012 OEM equipment. I'm not going to replace them until they break. and I'm 18mos into the 39s setup. Steering is all stock except the tierod (Synergy, 5yrs ago) which I only upgraded for offroading contacts with rocks. This thing drives like a dream (for a JK).
Last edited by BLK HOLE; Jun 23, 2022 at 11:21 AM.
You don't need to do anything, especially for a DD. 37s and stock D44 Rubicon JK axles will be fine. People parrot a lot of upgrades that aren't needed until...they're needed, which isn't as common as people think. Stock steering is fine. You can even leave the 4.10s and it'll be fine on and offroad. Many of my friends have this exact setup (lift/gears/37s and otherwise stock axles assemblies) and have been running it for years. If your rear axle shaft flanges haven't bent...those tend to bend/warp on JKs. Chromoly shafts fix that problem.
What would I do, in your shoes? Regear it...thats it. Because that is what I did. When I went 37s I had a 3.5" lift. Added 37s, regeared and done. I went 4.88s and immediately regretted it...now I'm on 5.13s and changed to a 4" lift. Wheeled the rocks for years like that...Moab and Colorado road trips, trails and rock crawling and drove back home.
This is mine...now on 39s, 5.13s. I did upgrade to a dynatrac front axle housing (Nothing broke, I just wanted it)...but guess what? The axle shafts and all the guts are still STOCK from 2012 OEM equipment. I'm not going to replace them until they break. and I'm 18mos into the 39s setup. Steering is all stock except the tierod (Synergy, 5yrs ago) which I only upgraded for offroading contacts with rocks. This thing drives like a dream (for a JK).
What kind of tires do you have on it? When you had 37s
