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Discussion Starter #1
I drive about 25 miles each way to work and my transmission is whining like crazy!

I still am not able to go over 55 in 4th gear. absolutely no power in 5th gear.

Is there a cheat way to check the tranny? or to see if there is anything wring? I checked the fluid and no metal shavings, and it has plenty of fluid.
 

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i know whats causing this, but im having a brain fart. did you search on here for an answer. i think i remember reading about it on here.
 

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my first guess would be your main bearings either in your t case or transmission. are you sure its coming from your trans and not your t case?
 

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I drive about 25 miles each way to work and my transmission is whining like crazy!
Might be the transfer case. Does the whine change much in different gears?
4th is direct drive. The input shaft is locked to the main shaft. There is no power transmitted through the counter shaft. No power is transferred through any of the gears. No side force on any gears and very little thrust load on the bearings. If 4th seems substantially quieter than the other gears, you may have some transmission issues. I have a transmission, that is in need of a definite rebuild. No whine, but lots of other hisses and growls. It sounds more like a kitchen blender, on low speed.
I still am not able to go over 55 in 4th gear. absolutely no power in 5th gear.
What size tires are you running? Run any size much above stock (205/75/15) and yeah, your Sami will be a real dog. I read on your other posts, you run a Weber. Are you running the stock exhaust? If so, have you checked the catalytic converter, for restrictions? What kind of fuel economy are you getting?
Is there a cheat way to check the tranny? or to see if there is anything wring? I checked the fluid and no metal shavings, and it has plenty of fluid.
Did you check the fluid level in the transfer case? All my TCs have a bit of whine. I expect it, from a 28 year old gear box, with 100k plus miles on it.
Run your TC in low range and see what the difference in noise is, compared to high. It wont give you a definite answer, but the load on the transmission will be less, so, transmission noise might be less, for the same road speed. If the whine is far worse, Id be looking at the TC, as your problem.
My 71 FJ40 Land Cruiser doesn't have a radio. The TC whines so loud, I couldn't hear it anyway. Been that way for the 20k miles I've owned it and its still going.
The Samurai transmissions are very easy to rebuild and the kits are inexpensive. The TCs are a little harder to do, since you have to shim the shaft bearings, to get the clearances correct. If you have the Factory Service Manual (free download is out there on the internet), either one is not problem, for people with a bit of mechanical experience.
 

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Stock tire size is 205/70-15 I noticed a big difference going from 215/75-15 to 205/70-15. For my needs, stock size Yokohama Geolandar AT-S work great.
 

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Stock tire size is 205/70-15 I noticed a big difference going from 215/75-15 to 205/70-15. For my needs, stock size Yokohama Geolandar AT-S work great.
I couldn't remember size offhand. I just remembered it was a 205 something.
I'm running 215/75/15. Running a header added to the Weber and a 2" exhaust, puts the performance about the same as running the 205/70/15, with a Weber, stock exhaust and a rusted out muffler.
 

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Discussion Starter #9 (Edited)
Tranny Whine

#1 Might be the transfer case. Does the whine change much in different gears?

#2 What size tires are you running?

#3 Are you running the stock exhaust?

#4 What kind of fuel economy are you getting?

#5 Did you check the fluid level in the transfer case?

#6 Run your TC in low range and see what the difference in noise is, compared to high.

#7 If you have the Factory Service Manual (free download is out there on the internet), either one is not problem, for people with a bit of mechanical experience.

#1 Yea actually, first thru 3rd and even 4th when I accelerate there is minimal whine. But only when I am cruising at 55 (around 4k rpm) in 4th is when it whines the most.

#2 They are 30/9.5x15, I am not sure what metric that is or what stock ones are haha

#3 Nope! it is a 3'' with just a magna flow muffler, no holes, and a thorley header.

#4 I can go 100 miles in about half a tank or so. I usually take back roads going an average of 45MPH. (because the whining I didn't know if it was bad or not so I try not to produce the sound)

#5 I did, It first was gloppy, almost like poop (excuse the graphic imagery) haha
but i changed it out and before I started using it as a daily driver. I do have another full tranny that has literally brand new oil in it, no metal shavings But If it is the T-case then whats the point haha

#6 I definitely will when I get home, I am in AZ night now due to a military school.

#7 I do have the whole printout at my house, I have a few extra gears and a ton of stuff laying around.


Thank you ! this helps a lot!
 

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Discussion Starter #10
so the noise is coming from the t case. and it is Loud. I noticed that when I put the t case in neutral, the intermediate drive shaft spins (well it is supposed too.) but then it stops. when I went to manually spin it it was easy to spin then went through a very rough spot and was almost impossible for me to turn, I am going to pull the shaft tonight and see (and pray) it is just a U Joint. but if not what could it be?
 
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