Time to order a transfer case rebuild kit? (1 Viewer)

[earl]

Has anyone else driven only with their front driveshaft in 4H? I've been doing it a lot lately with my BJ70, and I get some pretty nasty *sorta* gear grinding noise when I coast.

Time to order a t-case rebuild kit? Why doesn't it do this with the rear driveshaft on?

***SOLVED*** Noise was coming from my front diff.

 

[1tontoy]

I don't think you should be driving on pavement much with just the front driveshaft. When you steer, you can cause serious wear or damage especially if you make sharp turns.

 

[Hulsty]

I've driven on the front only for about 100kms no problems at all apart from the horrid steering.

 

[earl]

I've driven on the front only for about 100kms no problems at all apart from the horrid steering.

No noises? Originally I thought maybe it was normal, but the more I do it the more it sounds like my t-case is going to explode

 

[Radd Cruisers]

Has anyone else driven only with their front driveshaft in 4H? I've been doing it a lot lately with my BJ70, and I get some pretty nasty *sorta* gear grinding noise when I coast.

Time to order a t-case rebuild kit? Why doesn't it do this with the rear driveshaft on?

Usually this is the slip spline in the driveshaft or the front output bearing... or both.

Be nice to it and you can go a LONG way in front wheel drive. BTDT.


~John

 

[earl]

Thanks, if I rebuild the transfer case, would it be stupid not to do the transmission at the same time? What do good replacement tranny and t-cases go for these days? Transmission and transfer rebuild kits will cost me about $500 from Cruiser Outfitters. I've never rebuilt either before, so I imagine it'll be time consuming

 

[SimonInAustralia]

Sorry to hijack this thread, rather than start another, but...

I get a metallic ting sound from the drivetrain in 4HI and 4LO, not in 2HI, that seems to happen mostly when starting from a stop, when the drivetrain gets loaded up, and also happens over rocky terrain when the suspension is being flexed back and forth.

Any ideas?

My mechanic thinks it might be the gears in the transfer case, but I am having a hard time getting a quote for a rebuild out of him.

Might have to record the noise and try to post it up somewhere for possible diagnosis.

 

[Hulsty]

No noises? Originally I thought maybe it was normal, but the more I do it the more it sounds like my t-case is going to explode

No problems at all, transfer case had done ~330,000km at the time. Now at 365,000km with no problems. Was running on 35'' rubber at the time too.

Drop the oil from your transfer and gearbox, might fund a "silver frost" or chunks of something has let go badly.

 

[Hulsty]

Sorry to hijack this thread, rather than start another, but...

I get a metallic ting sound from the drivetrain in 4HI and 4LO, not in 2HI, that seems to happen mostly when starting from a stop, when the drivetrain gets loaded up, and also happens over rocky terrain when the suspension is being flexed back and forth.

Any ideas?

My mechanic thinks it might be the gears in the transfer case, but I am having a hard time getting a quote for a rebuild out of him.

Might have to record the noise and try to post it up somewhere for possible diagnosis.

My old gearbox does that, and while reversing, a metallic ting/grinding noise. I have not stripped it yet, but knowing the issue that a H55F suffers from I would say it was a worn output shaft resulting in excessive backlash.

 

[Radd Cruisers]

Thanks, if I rebuild the transfer case, would it be stupid not to do the transmission at the same time? What do good replacement tranny and t-cases go for these days? Transmission and transfer rebuild kits will cost me about $500 from Cruiser Outfitters. I've never rebuilt either before, so I imagine it'll be time consuming

Typically the transmission lasts about twice as long as the transfer case, but that depends on lots of things.

Transfer case take about 6 to 8 hours with a good re-bearing kit. Can take longer, and can take less time depending on your skill level and available tools.

~John

 

[SimonInAustralia]

My old gearbox does that, and while reversing, a metallic ting/grinding noise. I have not stripped it yet, but knowing the issue that a H55F suffers from I would say it was a worn output shaft resulting in excessive backlash.

That is depressing, it sounds like it will be expensive.

 

[earl]

Typically the transmission lasts about twice as long as the transfer case, but that depends on lots of things.

Transfer case take about 6 to 8 hours with a good re-bearing kit. Can take longer, and can take less time depending on your skill level and available tools.

~John

Thanks John, from looking at the manual it looks like the transmission is a bit harder than the transfer case? Do you carry kits? Might have to leave the transmission alone since it seems to shift good, and is quiet.

 

[earl]

Sorry to hijack this thread, rather than start another, but...

I get a metallic ting sound from the drivetrain in 4HI and 4LO, not in 2HI, that seems to happen mostly when starting from a stop, when the drivetrain gets loaded up, and also happens over rocky terrain when the suspension is being flexed back and forth.

Any ideas?

My mechanic thinks it might be the gears in the transfer case, but I am having a hard time getting a quote for a rebuild out of him.

Might have to record the noise and try to post it up somewhere for possible diagnosis.

Sounds like front hubs? I am sure I had a vehicle that did this... can't remember which one though.

 

[Radd Cruisers]

Thanks John, from looking at the manual it looks like the transmission is a bit harder than the transfer case? Do you carry kits? Might have to leave the transmission alone since it seems to shift good, and is quiet.

Yes, I keep quite a few kits here usually but my stock is running low. However, my sea freight should be arriving tomorrow and then I'll be well stocked for quite some time.

Call if you need anything.

~John

 

[roscoFJ73]

Sorry to hijack this thread, rather than start another, but...

I get a metallic ting sound from the drivetrain in 4HI and 4LO, not in 2HI, that seems to happen mostly when starting from a stop, when the drivetrain gets loaded up, and also happens over rocky terrain when the suspension is being flexed back and forth.

Any ideas?

My mechanic thinks it might be the gears in the transfer case, but I am having a hard time getting a quote for a rebuild out of him.

Might have to record the noise and try to post it up somewhere for possible diagnosis.

My old gearbox does that, and while reversing, a metallic ting/grinding noise. I have not stripped it yet, but knowing the issue that a H55F suffers from I would say it was a worn output shaft resulting in excessive backlash.

I dont think its much to worry about. I know if I dump the clutch peadl carelessly my 75 series will make a ringing sound,like a single ring of a bell.
I just take it easy

 

[constablechris]

Ahhh the ting sound, not similar to a microwave but like aRosco says a single ding of a bell.

My troopie does it pretty regularly, 4wd, 2wd esp like Rosco says, if I am careless with the clutch. First time I did it I loked here there and everywhere for no result.

I just live with it and try no to judder the car on a hill start. Thats when its most noticible. Not that there are any hills in Darwin, except on boat ramps.

All those sounds, so little time....

Regards

Chris

 

[seapotato]

My old 40 used to make terrible gear coasting sounds when it was in front wheel drive only , drove it that way many times when I was having issues with a lockright locker among other things...

Never did figger out what it was, but I was really good at ignoring noises in that truck... Nothing ever seemed to come of it, and that tranny and tcase is still driving around in a friends mongrel 40.


Tcase rebuild is pretty easy, I did it for the first time a couple months ago, was a little worried about it before hand, but turned out to not be a big deal..if you played with lego as a kid, you can handle it.



Plus it gave me an excuse to buy a shop press.( only tool I didn't have for the job)
Only pain in the ass is the preload right at the end of the process. which is sorta fiddly, and rather annoying in the way its set up.


actually did it twice in about a month on two different cases,first time was a day and a bit ( cleaning a filthy case takes a while) second time I did it in a few hours, but that was just a gear swap.

cheers,
r

 

[earl]

Thanks seapotato, I'm kinda looking forward to doing the rebuild! I don't have a shop press though.

My filler plug hole threads are stripped (wasn't me!). I'm not too sure about putting a helicoil in, as it's probably going to cost me $100. I can get a complete used splitcase for $300. Chances are it is due for a rebuild too. It would be nice to find just the rear case.

 

[earl]

Got my transfer case pulled apart. I've got a few questions now. All the gears seem to have feathered like scratches at the tips. Is this just from the original manufacturing process? The middle of the teeth, where the gears actually ride is smooth.

Anything to be concerned about? I haven't noticed anything else out of the ordinary.

 

[earl]

Here's a picture comparing the original rear case (bottom), to the replacement (top) I got. Slight differences, which shouldn't matter right? Interesting though... the drain plug in my original rear case sits lower than the other one.

I did come across a post where someone was saying that it's not a good idea to mix front and rear cases that weren't originally together. Is this really something to be worried about?