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Old 02-20-2014, 02:02 PM   #1
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Transmission Leak 32RH

Hey everyone. I recently discovered a tranny leak in my 32RH on my 2000 4.0. At first inspection I had leak coming from the pan so I replaced the fluid, filter and gasket there. Since then the leak has lessened but they is still a leak; evidenced by new fluid trickling across the skid plate after a day or so. I have double checked the pan. No leaks there whatsoever.

Is there a rear seal or another gasket/o-ring of sorts inbetween the pan and the transfer case?

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Old 02-20-2014, 02:46 PM   #2
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If the speedometer gear has ever been changed, I would suspect one of the speedometer gear housing's 2 o-rings. They are easily nicked during the reinstallation process.

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Old 02-20-2014, 07:53 PM   #3
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It could also be from near the coolant lines or it could be the seal in between the transfer case and tranny.
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Old 02-21-2014, 12:10 AM   #4
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Awesome; thanks guys! Now I just have to get that dang skid plate off to get a better look.

Also thanks for the lubelocker suggestion earlier Jerry; just ordered one for the pan and diff's. Seems like a far better solution for the seals
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Old 02-25-2014, 04:59 PM   #5
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If the speedometer gear has ever been changed, I would suspect one of the speedometer gear housing's 2 o-rings. They are easily nicked during the reinstallation process.
Hey Jerry I haven't checked this yet. But I dug up an old post you had commented on. What are your thoughts of it being the output shaft seal?
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Old 02-26-2014, 02:44 PM   #6
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http://youtu.be/j_iBhLJdvbw

It's leaking almost directly behind the skid mount
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Old 02-26-2014, 07:29 PM   #7
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It looks like it is either your transfer case input seal or transmission rear output seal. Check out this thread.

I think I have a similar leak on mine at the moment but its so minor I'm not going to mess with it right now.

Transmission and Transfercase Seal Replacement Report
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Old 02-26-2014, 08:56 PM   #8
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Blue Devil transmission sealer. It'll set you back about $20 plus tax. Put a half bottle in the tranny & dump the rest in the t-case. If it doesn't stop in a few days, time to replace seals. 192K on mine in still going strong. A shop mechanic friend recommended it to me several years ago.
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Old 02-27-2014, 01:47 PM   #9
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It looks like it is either your transfer case input seal or transmission rear output seal. Check out this thread. I think I have a similar leak on mine at the moment but its so minor I'm not going to mess with it right now. Transmission and Transfercase Seal Replacement Report
Awesome! Thanks for the thread link; any input on the sealant fluid in the mean time? My leak is very minor but I have a drive across a couple states tomorrow for a camping trip
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Old 02-27-2014, 03:28 PM   #10
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I would agree with input T-case seal and/or output transmission seal. I had this about a year ago and would notice leaking at the skid. I had a friend replace both seals and it eliminated that problem. Didn't look like too bad of a job and he had it done in an hour.

However, replacing the transmission output seal consequently (I believe) made my new weakpoint the front seal(s) and those then started leaking at the inspection plate. I bought replacement seals but am not the least bit enthused about pulling the trans to replace them.

I plan to look into the Blue Devil Transmission Sealer; thanks for the tip!
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Old 03-11-2014, 06:18 PM   #11
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Update:

Ended up being the rear output shaft seal. Took the tcase off and there was fluid hanging out between the tranny and tcase. Replaced the tcase input seal while I was down there. Fingers crossed that's the fix
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Old 04-11-2014, 03:03 PM   #12
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Glad you got your issue resolved. FYI on the recommendation of Blue Devil Transmission Sealant - for anyone interested in this product, see my thread:

Blue Devil Transmission Sealant

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