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Unread 04-08-2010, 02:31 PM   #1
fitbmxseries1
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was stuck in 4 low drove it for on the highway 60 miles!

Well i just bought this yj and i tested the 4low while test driving it and it shifted ed in but then the linkage musta broke cause it stayed in 4 low on the 60 mile ride home. right now i have the springs off of it doing some rust repair (thats when i knowticed it was broken and stuck in 4 low) so i cant drive it but does any one expect i damaged my transfer case?

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Unread 04-08-2010, 02:34 PM   #2
Louie4
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As long as you're good on fluid levels and didn't go over 45-50 mph in 5th gear you should be fine. You could have manually shifted the t-case from underneath. I've had to do that.

Once you get it back together and in 2wd see if it makes any funny noises while going down the road.
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Unread 04-08-2010, 02:39 PM   #3
fitbmxseries1
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i was at a constant 60mph the whole ride home with a plow on front. I thought it was stuck in 4wheel but i just figured it was driving differnt due to the plow... i fixed the linkage good as new but just hoping nothing got wrecked. Ill probably be able to take it for a spin tommorow night and see.
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Unread 04-08-2010, 02:53 PM   #4
jaywiz1977
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I didn't know 60mph in 4lo was possible???Your motor must have been SCREAMIN at ya the whole time!Throw it in 2wd and see it makes nasty noises,if not you should change the TC fluid and tell it your sorry.
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Unread 04-08-2010, 02:57 PM   #5
Louie4
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I can't recall if I could hit 60 in 5th gear in 4LO. If I did I was pushing 5K+ rpm's.
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Unread 04-08-2010, 03:14 PM   #6
provinT13
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If you were in 4-lo at 60mph you're engine is probably about to fall apart as well as your t-case. Are you sure it was on 4-lo and not 4-hi?
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Unread 04-08-2010, 03:21 PM   #7
fitbmxseries1
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yeah im 100% it was in 4 low. Its got a 318 swapped in instead of the 4.0 though. it was riding at 60 didnt seem like the engine was screaming but was revving a bit high not enough to do damage to the engine. dont know what gearing it has though.
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Unread 04-08-2010, 03:23 PM   #8
provinT13
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Yea that was probably hell on your t-case
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Unread 04-08-2010, 03:41 PM   #9
fitbmxseries1
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rebolted the shackles back in and took a spin around the block. no noise coming from the t-case. but i can imagine what happend inside of there! lots of heat and lots of shavings. i should probably pull it and check it out.
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Unread 04-08-2010, 03:47 PM   #10
fitbmxseries1
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i need to figure out what transmission this thing has. not sure if its the stock TF999 or if it was swapped with the 318.
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Unread 04-08-2010, 04:31 PM   #11
djsmith1174
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At 60 mph with a 2.41 or 2.72 TC lo range would have put it likely in the 5000+ rpm range! Of course other limiting factors would axle ratio, overdrive, and tire size. Does it have a tach in it? My 2.5L, ax-5, np-231, 4.10 gears, and 31 in. tires turns around 2600 rpm at 60 mph in hi. So in lo it would be around 7100 rpms. Yikes! Hope nothing is damaged. Enjoy your new Jeep.
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Unread 04-08-2010, 05:00 PM   #12
fitbmxseries1
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rpms guage didnt fully work but never went over 3 grand at 60. now im not 100% sure it was in 4 low! were the shifter lined up to the linkage would indicate that it broke in 4 low and thats were the linkage sat. but it really didnt rev very high..... so by going on what your saying it must not have been in 4 low.... it did start to run a bit too hot but i did have a plow on it when it was 70 degrees out.
4 low should have the linkage pushed all the way forward right? the shifter will be pulled all the way back pushing the linkage forward if im not mistaken. im hoping it was just in 4high then!
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Unread 04-08-2010, 06:02 PM   #13
bharris68
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Chances are good the lever broke before it went into 4Low - Based on what you're saying, my vote is there is absolutely NO way that Jeep was in 4 low for that long at drive at that speed. Even in 5th. gear you're lucky to get to 35 or 40 miles an hour without hearing a deafening roar under the hood and under your feet from the transfer case and engine.

Once the shifter is fixed, I think that you're good
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Unread 04-08-2010, 06:46 PM   #14
sailmike83
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If you know the tranmission/tranfercase/axle gear ratios you could get an idea of what RPM you would likely be pulling at 4Lo.com :: Final Gear Ratio, Crawl Ratio, Tire Size Calculators
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Unread 04-08-2010, 08:29 PM   #15
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I gotta go with everyone else here, I don't see how it's physically possible to do 60 in 4lo. I don't even think you can do 35 in 5th, redlining the hell out of the thing with it in 4lo. Are you completely sure it wasn't in 4HI?
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