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Old 06-13-2007, 08:23 AM   #1
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shift knob & and tire psi question

ok first off, i want to put a t handle in my tj and figured the stock knob would just unscrew, but that thing is not budging. does it even screw off? second, i might be taking my jeep down to nc next weekend for a little beach riding, i am running the usual 31x10.50s bfg at's, i am being told i should air down to 15 psi, true????

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Old 06-13-2007, 08:32 AM   #2
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My old 97 just screwed on and off. Might have some locktite in it. Beware though, once I broke the knob loose, it would never stay tight

Airing down is deffinatly a plus in sand. How low? I have never had A/Ts, couldnt tell ya how low to go, but 15 sounds about right. I have been told 12psi with MT/Rs and 18-20psi with street tires, so 15 with BFGs sounds pretty good. Just becareful and watch your bead and deffinatly dont run 35 psi...

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Old 06-13-2007, 08:44 AM   #3
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i am not going alone so if my bead breaks or something i will be ok, also if i dont air down whats the deal? the tires are just going to dig into the sand and bury me or something? lol. one more thing, is the knob metric?
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Old 06-13-2007, 08:54 AM   #4
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Quote:
Originally Posted by RedWrangX View Post
i am not going alone so if my bead breaks or something i will be ok, also if i dont air down whats the deal? the tires are just going to dig into the sand and bury me or something? lol. one more thing, is the knob metric?
Exactly. Air down and you float..Stay inflatted and you will dig into loose sand and high center.

If the wheels start spinning on sand, GET OFF THE SKINNY!
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Old 06-13-2007, 08:58 AM   #5
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thats what i thought, hey since your on check out my other post about the onboard air, maybe you can helpthere too
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Old 06-13-2007, 10:18 AM   #6
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Done My work is dead untill august
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Old 06-13-2007, 11:28 AM   #7
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Yeah I was trying to unscrew that shift nob and it is almost impossible by hand!! .
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Old 06-13-2007, 12:12 PM   #8
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if you want to get it off and not damage it to bad a rubber oil filter wrench is the way to go.. as for the tires running 15 might be a little excessive for anything abouve 33's try airing down to 20 if your on a 15 inch rim.. you have more sidewall on bigger tires like that. if they arn't pancaking out then air down more
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Old 06-13-2007, 12:38 PM   #9
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i dont have above 33s i only have 31s
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Old 06-13-2007, 12:46 PM   #10
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Take a really skinny (small) flat head screwdriver and pop out the center "cap" that has the gears written on it. After that pops out, you'll see the main nut holding the shift knob on to the shifter.
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Old 06-13-2007, 01:02 PM   #11
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Yeah, you don't need to just unscrew it. you need to remove the plastic plate the has the shift guide on it first. Then take a 15 MM socket and remove that nut. then it should easily unscrew by have. When you are done reinstall the nut and you should have no problems with it staying tight!!
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Old 06-13-2007, 01:04 PM   #12
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Guess mine was missing a nut Dave, you really think 15s too low for D rated A/Ts?
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Old 06-13-2007, 01:18 PM   #13
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hey jc what part of md you in?
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Old 06-13-2007, 01:26 PM   #14
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howard county, columbia area
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Old 06-13-2007, 02:33 PM   #15
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cool, i am in indian head, i used to live in waldorf. got any buddies in the area with jeeps? or any other offroad type of veh? i am putting together a "club"
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Old 06-13-2007, 02:53 PM   #16
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You will not lose break a bead at 15 psi unless you hit something really hard or try to take a turn on concrete at a hundred.

I run my 35's down to 8 on the trail and have only lost a bead once and it was my fault.
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Old 06-13-2007, 03:07 PM   #17
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Last time I had 33's I ran them at 8 to 10 off road. Did the same with the 31's before them. No problems.
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Old 06-14-2007, 12:39 PM   #18
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ok guys, thanks for the help. i will try 15 i guess, to start with

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