Tire size

[kenjr]

I have a '04 X witha 4" lift. I don't know if I should go with 31's or 33's. how much does the tire size actually effect your braking? I drive it 7 miles forth and back to work every day. Everything is all stock, I just want the traction and clearance to keep going. Bypass trails and sand only. Thank You Kenjr

 

[superj]

i think in that small a tire size, braking won't be affected that much. with 4" of lift though, i would imagine you could run a 33 easily.

but wait for someone with a newer jeep to tell you a for sure answer

 

[kenjr]

i think in that small a tire size, braking won't be affected that much. with 4" of lift though, i would imagine you could run a 33 easily.

but wait for someone with a newer jeep to tell you a for sure answer

Thank you Jason..........

 

[ljrubitm]

I had a 06 with a 4" lift & 33''s, to me it was a good setup.

 

[Bounty__Hunter]

You have enough brakes to run 33" tires.

 

[Utah_jeepster]

As bounty says you have enough brakes and lift to handle 33's with no problems.
If your worried you can upgrade to slotted rotors and tougher ceramic style of pad. You can even go for 35's but you need some bump stops to handle the compression part. I have since dropped from 35's to 33's with my 01 with 4inches of lift and found I have all the articulation needed to handle the tough trails.

 

[kenjr]

Thanks Guy"s

 

[jfrabat]

You can always go and grab an Astrovan (what I have) booster. Astrovan is hydroboost, so brake pedal feel is way different, but it stops pretty good. You will need to do some plumbing of the power steering lines, though.

 

[Bounty__Hunter]

Brake upgrades if you want some more stopping power:
Greenstuff Brake Pads Products Index

Ultimax BlackDash USR Slotted Rotors Product Index | EBC Brakes

 

[jfrabat]

Brake upgrades if you want some more stopping power:
Greenstuff Brake Pads Products Index

Ultimax BlackDash USR Slotted Rotors Product Index | EBC Brakes

Before I went to Hydroboost, I tried Hawk Pads with Brembo rotors... Improved, but still crappy braking. I then went to the '95 dual diaphragm booster, and to be honest, I noticed very little improvement.

I am now considering the rear disc conversion, but more because I get mud in the drums than because of brake force. I am also considering a big brake conversion for the front, but this is because I had my engine stall in a big hill, and it was a bit scary having no booster, so I was considering this alternative for better brakes with no booster...

Normally, though, the hydroboost stops the Jeep just fine.

 

[JohnnyO]

31's will look kinda small with a 4" lift. I'd go with 33's.

 

[O_M_Jeep]

31"s will look tiny and cartoony, you wont like them at all, 33"s are the way to go, though if your not doing any serious obstacles or technical rock or anything like that go with 33X10.5 15s, this will help you maintain what little MPG a Jeep has, and still give you good clearance and fill out the wheel wells nicely.

Your brakes will be absolutely fine, you wont feel any difference at all between 31"s and 33"s, the stock brakes are more than up to the job, you can upgrade of course, but if your not routinely getting in situations where your braking on extreme angles, it isnt necessary to upgrade.

 

[Utah_jeepster]

Before I went to Hydroboost, I tried Hawk Pads with Brembo rotors... Improved, but still crappy braking. I then went to the '95 dual diaphragm booster, and to be honest, I noticed very little improvement.

I am now considering the rear disc conversion, but more because I get mud in the drums than because of brake force. I am also considering a big brake conversion for the front, but this is because I had my engine stall in a big hill, and it was a bit scary having no booster, so I was considering this alternative for better brakes with no booster...

Normally, though, the hydroboost stops the Jeep just fine.

Lets talk about this hydro-boost, conversion. What year did you pull the hydro-booster from?
What about activator arm length? Did you have to modify it?
Did you change out your stock power steering pump?

 

[jfrabat]

31's will look kinda small with a 4" lift. I'd go with 33's.

I agree; here's how mine looked with 31's and 4" of lift:

And here's on 33's:

Lets talk about this hydro-boost, conversion. What year did you pull the hydro-booster from?
What about activator arm length? Did you have to modify it?
Did you change out your stock power steering pump?

I dont remember the year, but as for the activator length, it was almost spot on. I just modified the brake light sensor a bit (about a milimiter or so) so the light would not stay on permamnently. I am currently running the stock pump, but I am planning to change it, as you can hear it whinning during hard braking or tight turning.

Here are some pics of the setup (a bit old; taken while I was installing it, so it was not finished when I took them):

This one I ended up changing the T connectors to the correct setup...