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37" tires

2K views 15 replies 5 participants last post by  mikemounlio 
#1 ·
I am kicking around the idea of getting 37's when my current tires finish up. I was thinking stay at 35 then thought about 36 (to hard to find) now im thinking 37's.

I have the 5 speed Rubicon with factory lockers, Usa axles, 4.5" LA lift, and PSC gear box

I was thinking get the black magic brake pads and 5.5" springs.

Please any input would be nice. I have done a ton of looking up 35's but nothing for 37's yet.
 
#2 ·
I am kicking around the idea of getting 37's when my current tires finish up. I was thinking stay at 35 then thought about 36 (to hard to find) now im thinking 37's.

I have the 5 speed Rubicon with factory lockers, Usa axles, 4.5" LA lift, and PSC gear box

I was thinking get the black magic brake pads and 5.5" springs.

Please any input would be nice. I have done a ton of looking up 35's but nothing for 37's yet.
Its doable, keep in mind that a jump from 35 to 37 adds on a lot of meat. The TJ 44 can handle it if built but its really cutting it. The TJ dana 44 and 30 are not that different from each other. It also depends on how you wheel. If you like to ram the gas going up obstacles then you will run into problems fast.

TLDR doable but risky.
 
#3 ·
Well i dont like to be on the risky side so i think i will end up sticking to my 35's for the next set of tires. Who knows i may end up with a trail rig before long. I do think i will end up getting the black magic pads and the 5.5" springs still.
 
#5 ·
Then again i just called my local tire shop they gave me a price of 260$ installed per tire.

I think i will still wait it out and get more 35's use the extra time and money to add some needed support to the dana 44.
 
#7 ·
I never have had any problem stopping my 35's. With disks on all corners and the clutch i would think high dollar pads would be enough. Plus i drive like im actually going to get better GPM (gallons per mile)
 
#11 ·
Found a good thread on another site about this very same thing. I will stick to 35's with these axles. Its not worth the 1" gain.

Im thinking keep the jeep on 35's and just look for a beater trail rig thats ready to go in a couple years. Find one thats on 40's and rebuild it to fit my needs.
 
#12 ·
Well i was sure i would stick to just 35's until friday night. I was on my facebook group page and a new member was showing off his jeep. He had new 37 BFG on pro comp alloy rims. After talking for a bit we made the choice to switch my 5 for his 5 and i gave him a set of 5 other rims to sale or trade to make up the difference.

So now i have a new set of 37's on new to me rims.

Now i need to buy a truss kit, sleeves, WHAT ESLE TO ADD to my dana 44? Im not gonna wheel it till i build it up a bit.
 
#13 ·
I do notice the difference when taking off in second. I have to give just a touch more rpm. The 37 BFG seem to ride much better then my older 35 MTZ. Highway speed is now at a lower rpm. I did notice a difference in mpg on the highway (most of my driving).

I am increasing my bump stops 1" this week as well.

i will add 1.75" coil lift simple because a friend is giving it to me for free.
 
#14 ·
Heres a good picture showing the new rims and tires and the old. I am very happy with the trade. Now i just gotta build the dana 44 to actually handle the tires. I have the axles now i just need to make it hold them without bending like a soft noddle.

Please any links to good truss kits would be great.
 

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#15 · (Edited)
Your front D44 axle is not up to 37" tires and your rear D44 barely is. Your front "Dana 44" is only a Dana 44 at its pumpkin with its gearing and inner axle shaft. The rest of it is pure Dana 30... axle tube, outer axle shaft stub, knuckles, u-joint, brakes, and especially its ball joints which will start failing with that large of a tire. The biggest tire that axle can hang together long-term with is a 35".
 
#16 ·
Jerry i have full usa alloy shafts in the jeep.

The Front: The ball joints were replaced with the heavy duty ball joints. I am going with the synergy inner axle sleeve kit. I will also add the synergy front c-gusset kit.

The Rear: The usa alloy shafts. Different shock mounts. Track bar bracket brace.


I am not sure what all i want to do to the rear axle at this time. Until i get some more support i wont be doing anything other then daily driving it. Do you think the front with axles, ball joints, sleeve, and c-gusset is enough to handle light wheeling?
 
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