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Old 04-23-2009, 02:17 PM   #1
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Cool Just bought '06 and problems starting

hey everyone!
i just bought an '06 Se, 4cyl. i've been riddled with problems the moment i lift the lot, thank god for warranties! the cat effeciency trouble code popped up, and i started noticing transmission problems. without writing too much in here, the short of it is the snchros were worn, as well as the clutch. now the trans shop stated that the transmission in the jeep is unique in the fact that you don't find the 4cyl. in a 6 speed to often. from what i searched...the '06 SE manual was released as a 6 speed! the shop said the transmission itself was a mercedes transmission and not the AX-15, making the synchros hard to come by, and pretty much i had them change out the whole transmission. it's still in the shop, and they should be getting in the whole assembly in a day or two. has anyone else come across this problem before with the '06 6 speed? is this going to be an ongoing problem with the trans? i planning on getting a 6" rough country lift in a month or two...i just don't want to have to worry about the trans after i install the lift.
thanks all!
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Old 04-23-2009, 03:46 PM   #2
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that's what you get for buying the 4 cyl.

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Old 04-23-2009, 04:14 PM   #3
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Sounds like the first owner didn't understand how to drive a manual trans. If you do, you should be much better off.
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Old 04-23-2009, 05:29 PM   #4

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Well, 1st off the ax-15 was only behind the 4.0l The 4 bangers got the ax-5 (or was it 10) anyway.. Mercedes 6spd is not a good as the nv 3550 it replaced. You may also want to reconsider the rough country lift.. the older versions are not known as being the best product.. The newer stuff is well. too new to tell yet...
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Old 04-23-2009, 05:47 PM   #5
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6" lift w/ what tires? dont go too big with the lil 4.
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Old 04-23-2009, 10:04 PM   #6
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thanks for all the advice so far everyone!
well i'm getting a set of 35's and the wheels too at a discount...long story short my cousins giving them to me. i wasn't sure if the 4" lift was going to limit what i could do on the trails so i thought better to go big than too small a lift.
is getting a 6" lify too much for the 4 cyl to handle? should i cap at a 4" lift?
as far as lifts go, i'm sure i could trawl the threads and find some advice on a decently priced lift that will last. aside from that, anyone have opinions on who's better? i just found some reasonably priced rough country lifts online. how's skyjacker?
i'm a newb to the whole jeep world obviously, so any and all advice is welcome.
the transmission is coming to me free via warranty...this seems like forshadowing...am i going to be seeing more problems with the mercedes trans in the future?
note to self...next wrangler...get the 6cyl. lol!
thanks everyone! i'm excited to get to work on this thing once i get it back from the trans shop.
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Old 04-23-2009, 10:07 PM   #7
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also...if i DO go with the 4" lift...should i still invest in the SYE or should I be fine without it? will the 35" tires be ok on the 4" lift?
thanks again!
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Old 04-23-2009, 11:14 PM   #8
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you can put whatever lift on it that you want, thats not what affects the motor. what does affect the motor is the tire size and that little 4c motor wont move with those 35" tires on it till you regear the axles. also im not sure what they put in them with an 06 but i know the older 4c motors used a d30 rear axle that will break fairly easily with 35" tires on it. i would do a sye with a anything over 3" of lift.
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Old 04-24-2009, 12:18 AM   #9
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Originally Posted by superdave View Post
also...if i DO go with the 4" lift...should i still invest in the SYE or should I be fine without it? will the 35" tires be ok on the 4" lift?
thanks again!
I have had a 3.5 inch lift with a 1 inch body lift and it I didn't have to spend the money on the SYE just used a couple washers to drop the skid.

You will however have to worry about the d35 rear axle if thats what you have.
06 Rubi Unlimited, 3.5" Rubicon Express LA, OME Shocks, Metal Cloak Aluminum Bumper, Warn Winch, Power locks/remote start.
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Old 04-24-2009, 11:29 AM   #10
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thanks all! i'm probably going to stay away from the 35's...just cause it's going to be too costly and too much of a hassle to put them on my 4 banger.
33's should be fine I'm thinking right? I'm also going down from the 6' lift to a 4".

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