Time to install some upgrades!!! 4.5" lift, 37" tires Do I need anything else?
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JK Newbie
Joined: Jul 2011
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From: Anahauc, Texas
Time to install some upgrades!!! 4.5" lift, 37" tires Do I need anything else?
I have a 2011 JK Unlimited Automatic with a Dana 30 upfront. I will be installing a AEV 4.5" lift, Pro Comp 17x9 7069 wheels, Toyo MT 37x13.5x17 tires, Nitro Axle sleeves and Synergy C gussets. I know I will probably install new gears, but don’t plan on doing that till later. Does anyone have any other recommendations or anyone running 37” tires with stock 3.73 gears?
Last edited by FOSTER; Dec 23, 2012 at 06:50 AM.
JK Forum Regional Rep
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From: Stockton.Ca
I have a 2011 JK Unlimited Automatic with a Dana 30 upfront. I will be installing a AEV 4.5" lift, Pro Comp 17x9 7069 wheels, Toyo MT 37x13.5x17 tires, Nitro Axle sleeves and Synergy C gussets. I know I will probably install new gears, but don’t plan on doing that till later. Does anyone have any other recommendations or anyone running 37” tires with stock 3.73 gears?
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JK Newbie
Joined: Jul 2011
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From: Anahauc, Texas
Running out of money don't think I can do the ram assist, axles or drive shafts just yet. I think I will spend the money on the ball joints and replace them when I install the Nitro axle sleeves.
Just didn't know if there is anything else that is a must to run the 37" tires and 4.5" lift. I don't plan on doing any rock crawling for a while mostly will be used for mud or on the pavement back and forth to work. I have read about issues with the drive shaft and the automatic transmission. Hopefully I won't need to replace the driveshaft but will look after installing the lift.
Just didn't know if there is anything else that is a must to run the 37" tires and 4.5" lift. I don't plan on doing any rock crawling for a while mostly will be used for mud or on the pavement back and forth to work. I have read about issues with the drive shaft and the automatic transmission. Hopefully I won't need to replace the driveshaft but will look after installing the lift.
JK Newbie
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From: Pennsylvania
Gear is very important when it comes to 37 you can get away with it with the 35 but its gonna be a dog with 37 and the axel needs to either be swaped to a 44 or 60 or you gonna need to beef that 30 up big time and not go to hard on it.
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JK Newbie
Joined: Jul 2011
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From: Anahauc, Texas
Originally Posted by triplethreat5188
Gear is very important when it comes to 37 you can get away with it with the 35 but its gonna be a dog with 37 and the axel needs to either be swaped to a 44 or 60 or you gonna need to beef that 30 up big time and not go to hard on it.
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JK Enthusiast
Joined: Dec 2011
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From: Stanhope
Im trying to do a similar upgrade. I chopped my fenders on my 2.5 lift and plan on doing a regear, balljoints,gussets, and sleeves all at the same time. A drive shaft my definitely be in your future. I might do a 1 in body lift to avoid doing any more suspension work and having to get a new one. I think you may want a programmer for sure but wont be entirely necessary. Maybe trim the pinch seam as well.
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JK Newbie
Joined: Jul 2011
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From: Anahauc, Texas
Originally Posted by loserhead4236
Im trying to do a similar upgrade. I chopped my fenders on my 2.5 lift and plan on doing a regear, balljoints,gussets, and sleeves all at the same time. A drive shaft my definitely be in your future. I might do a 1 in body lift to avoid doing any more suspension work and having to get a new one. I think you may want a programmer for sure but wont be entirely necessary. Maybe trim the pinch seam as well.
JK Junkie
Joined: Jun 2012
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From: rosamond, ca
I will trim the pinch seam. I want to replace the driveshafts but have a hard time turning loose of $650 more. It does make more since to replace the driveshafts while I have the front end pulled apart. I would like to replace the gears myself but need to read more on the tools needed and how difficult it would be.