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Old 01-31-2013, 10:47 PM   #31
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Wouldnt the transmission be a ax-15 considering its in a 98?
Woops, mis-understood the question. Its a nv3550.

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Old 01-31-2013, 10:50 PM   #32
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[QUOTE=JVLemur;3306335]4low on a trail, not on the street right?[/QUOTE
yea anywhere i need to back up the smallest grade to turn around i have to throw it in 4 low to avoid burning out the clutch.

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Old 01-31-2013, 10:51 PM   #33
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Woops, mis-understood the question. Its a nv3550.
yea its a 2003 X 5 speed. the 98 sahara was my old jeep
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Old 01-31-2013, 11:00 PM   #34
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What kinda mpg's are you seeing? Could also be looking at a glogged cat.
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Old 01-31-2013, 11:02 PM   #35
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prolly around 11 dont have to worry about clogged cat thought that was the issue so its hollow now also changed plugs wires and air filter.
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Old 01-31-2013, 11:05 PM   #36
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Just so you know, it's not recommended to use the wranglers 4wd on high traction, it's a part time 4wd system.
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Old 01-31-2013, 11:08 PM   #37
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Just so you know, it's not recommended to use the wranglers 4wd on high traction, it's a part time 4wd system.
That's good advice. Don't use 4lo on pavement or any place with high traction. But about the burning clutch thing, are you just having to slip it a lot more or do you legitimately think it's going to burn up and you have to use 4lo? Because if you're under-geared then you will have to slip it more to get going. But it shouldn't be an extreme amount.
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Old 01-31-2013, 11:10 PM   #38
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prolly around 11 dont have to worry about clogged cat thought that was the issue so its hollow now also changed plugs wires and air filter.
11 seems low, but I don't know how your driving habbits are. Proper gearing is likely what you need, but is their anything else out of the nornal?
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Old 01-31-2013, 11:13 PM   #39
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i only use 4lo when i stuck or like i said when im backing up on the trail. and its actually burning the clutch i just replace the clutch a couple months ago it was shot. and the only time 4wd is used is when im on trails or mudding or when the roads are snow and ice.
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Old 01-31-2013, 11:19 PM   #40
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im not 100% sure on mileage haent figured it up my brotheres been using it mainly due to his vehicle broke down and im not working at this time. and everything else is great only thing wrong with it other then the gearing is my rear shocks arent hooked which as soon as my buddy with a body shop can will be fixed. and my 4wd lights in the cluster dont work. looked at the plug on transfer case and that looks fine must be the bulbs
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Old 01-31-2013, 11:20 PM   #41
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i only use 4lo when i stuck or like i said when im backing up on the trail. and its actually burning the clutch i just replace the clutch a couple months ago it was shot. and the only time 4wd is used is when im on trails or mudding or when the roads are snow and ice.
Okay gotcha. Well I'm still not sure why it's taking such an effort to get moving. I'm under-geared at 3.73s with 33s and I have to slip it a tad to get going but nothing crazy. If you're absolutely positive you won't go bigger than 33s and you have the funds now, I don't see why you couldn't just go ahead and regear to 4.56s now. It'll surely help out on the power issue and you'll just be running a little higher RPMs since you have 32s not 33s. Only if you are going to 33s next though. You may also want to think about your rear axle, this is the time.
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Old 01-31-2013, 11:27 PM   #42
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alright man thanks again for the info. i dont have the funds now but i may have a good job waiting on the phone call which means time for more upgrades haha what should i do to the rear axle?
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Old 01-31-2013, 11:30 PM   #43
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Switch it for a 44 or a ford 8.8. Or a Super 35.
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Old 01-31-2013, 11:33 PM   #44
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Switch it for a 44 or a ford 8.8. Or a duper 35.
^ I would reccomend you upgrade to one of these before you put new gears in it. I have heard of people jumping the clutch and busting their 35 on pavement with stockish tires.
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Old 02-01-2013, 12:58 AM   #45
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Alright thanks again guys ill look into them rear axle scares me sure I'm going to pay out my ass but I'm sure it will be well worth it in the end
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Old 02-01-2013, 05:52 AM   #46
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What if gearing isn't his problem, which it probably is. What do yawl think?

Maybe its a 4cyl with an X sticker on the the side Just kidding, but the gearing should do it.
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Old 02-01-2013, 08:55 AM   #47
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You might be able to buy a replacement set of balls for it, now that I think about it.....
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Old 02-01-2013, 09:02 AM   #48
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You might be able to buy a replacement set of balls for it, now that I think about it.....
LOL


Get a Ford 8.8 cheaper then a d44 and super 35
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Old 02-01-2013, 10:33 AM   #49
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Switch it for a 44 or a ford 8.8. Or a Super 35.
Agreed. Super 35 would be last on that list though. I'd do my best to get it out of there if I could.
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^ I would reccomend you upgrade to one of these before you put new gears in it. I have heard of people jumping the clutch and busting their 35 on pavement with stockish tires.
Good info here, too.
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Get a Ford 8.8 cheaper then a d44 and super 35
This is true, you should be able to find an 8.8 out of certain year Explorers in a salvage yard. You will have to weld on new mounts, etc. though. Still should be cheaper than a brand new D44.
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Old 02-01-2013, 10:43 AM   #50
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Just for ***** and grins, let's figure out what your present axle ratio is. From how you describe your TJ's performance compared to your mom's, I would bet your axle ratio is 3.07 and your mom's is 3.73. That 3.73 means the engine revs a little faster than it would with 3.07. The axle ratio indicates how many times the driveshaft rotates for each revolution of the tire... the more times the driveshaft rotates, the higher the engine RPMs will be which produces more power.

Here's the tag to look at, you will find it at the 9 o'clock position on both the front and rear axle's differential covers. Take a rag to clean the tag off & have a flashlight with you, the numbers aren't all that easily read due to dirt & being in a dark area.

The tag in the below photo has "3 73" embossed into it (circled in red) which means the axle has 3.73 gears inside.
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Old 02-01-2013, 10:49 AM   #51
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Though most of the time that tag as been removed or ripped off. You can also check your ratio by counting the number of turns of the driveshaft it takes to turn 1 rev. of the wheel.
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Old 02-01-2013, 10:55 AM   #52
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Though most of the time that tag as been removed or ripped off.
I would not agree that is the case "most of the time" since few vehicle owners ever bother or pay to change their axle gear lube. That would be with us Jeep fanatics but not with a young guy's first Jeep or his mother's.
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Old 02-01-2013, 11:48 AM   #53
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I agree with finding out the gear ratio. 3.07 is most likely what he has. Had a yj with 3.07's and 31's and it was slow. As soon as i changed to 4.56 when i went to 33's the jeep felt alive for the first time. You gotta find out your gear ratio or all the other stuff you are doing is pointless.
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Old 02-01-2013, 07:11 PM   #54
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I would not agree that is the case "most of the time" since few vehicle owners ever bother or pay to change their axle gear lube. That would be with us Jeep fanatics but not with a young guy's first Jeep or his mother's.
Almost all the axles Ive looked at did not have tags
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Old 02-01-2013, 07:18 PM   #55
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Mine doesn't either. Just a tag for the oil type and weight. Was a girls jeep too... Well taken care of...
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Old 02-01-2013, 07:31 PM   #56
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I think there is something to it "not having the power" a friend of mine has pretty much the same jeep as me. Both have 4 inch lifts. Both have 33x12.5x15 tires, both are 4.0l with 3 spd autos. We lined up at a stop light and raced up to the speed limit. Mine killed his and I have 3.07 gears.. His just didn't have the power mine did, and he didn't have a check engine light or anything.
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Old 02-03-2013, 10:14 PM   #57
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Climbed under it and the gearings 3.07 so that's the problem thank u all

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