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Old 02-12-2011, 09:13 PM
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Posible t-case problem?

I'm looking at buying an 82 cherokee 258/t5/np208. It ran well but when I shifted in and out of 4wd there was a grinding noise at idle that seemed to go along with the engine revolution. It wasn't grinding going in and out of 4wd, but the noise remained for a while after getting it into and out of 4wd. It was almost similar to the throwout bearing noise my old jeep made but was much louder. Any ideas what that could be? I'd like to get an idea of what I may be dealing with repair wise.
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Old 02-12-2011, 11:22 PM
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Sounds like a tcase 208s chain and bearings loosen under a load (like when in 4wd) happened to me a few months back same drivetrain. Put it in 4 low and see if it gets louderor crawl underneath and push up on the drive shaft to check endplay in the tcase.
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Old 02-13-2011, 07:06 AM
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I thought about that but would it make noise when in neutral at idle? I wouln't think it would be under load at that time but I'm certainly no expert on these things. If I do buy this jeep I'll need to drive it home (1 hour). If there is slop in the chain would it matter in 2wd or does the chain not spin at that time?
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Old 02-13-2011, 08:37 AM
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I can't be sure what the problem is, however I can tell you it won't be the T-Case. Parked at idle nothing in the T-case is moving. I would be looking at the Transmission first. The T5 is a weak trans and don't hold up well in these heavy rigs, however I have put many miles on a noisey T5, not saying the one you are looking at will go on forever or not, just that that is most likely the culprit.
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Last edited by Crazy_Jeepman : 02-13-2011 at 08:39 AM.
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Old 02-13-2011, 08:48 AM
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Coulple Gulps of coffee and re-read your thread, I realize it was the T-Case that was in Neutral and trans in gear?? If so, then yes the problem lies there. Could be as simple as low on oil, to bearings being bad on the input shaft. In neutral not much of the T-Case internals are moving. Though if they are wore out, then I suspect the T-Case is in bad shape in other components anyhow.
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Old 02-13-2011, 11:09 AM
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Quote:
Originally Posted by brielly
...It was almost similar to the throwout bearing noise my old jeep made but was much louder. Any ideas what that could be? I'd like to get an idea of what I may be dealing with repair wise.
Just a thought but it does sound similar to missing/worn out tcase shift fork pads. That brings on a metal to metal contact in the tcase but I'm not familiar enough with a T5 to picture how that would happen in neutral.
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Old 02-13-2011, 11:26 AM
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parasitic drag maybe?
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Old 02-13-2011, 12:16 PM
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I should clarify the noise was with the transmission in neutral not the tcase. When I drove it both in 4wd and 2wd it didn't make the noise. The noise also went away after a while or possibly after messing with the shifter. Its hard to describe because it came and went pretty fast and it was hard to get it to duplicate the sound. I may buy this thing regardless of this issue because the body and floor are perfect. Ive never seen one like it in the Northeast.
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Old 02-13-2011, 12:26 PM
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Noise change with the clutch in or out?
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Old 02-13-2011, 12:42 PM
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Going on memory here but I believe pushing in the clutch didn't make a difference. Unfortunately this truck is an hour from my house so I can't easily go back for another look.
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1982 Cherokee Chief 258 6 cyl, AX-15, NP208, mopar mpfi, hydroboost brakes.

1983 Jeep Cherokee Laredo 258 6cyl*SOLD*
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Old 02-13-2011, 12:45 PM
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Ahhh probably a throwout bearing should make it an hour, its worth it if the bodys good
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Old 02-13-2011, 07:13 PM
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I'd adjust the clutch to make sure the TO bearing is really free when the pedal is up. For a TO bearing, it should be silent with the clutch up, unless it's touching the clutch fingers. Also make sure the spring on the bell is pulling the release arm back when the pedal is up.

Could be the front main bearing in the transmission. If that, it will get quieter when you push the pedal down and stop the input shaft from turning.
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Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination ATs, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
ECO Green: '15 FCA Jeep Cherokee KL Trailhawk
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