ATF getting into transfer, what to do?

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thanks again guys
 
Hey folks... I found this older thread in regards to ATF getting into the T/Case and well my son and I picked up an FJ62 a few months back and this appears to be one of the dillemas. Anyway, I've been reading some of the threads in regards to rebuilding the t/case and it doesn't seem too difficult. I've placed an order for the FSM thru Toyota publications that should hopefully ship to my in 4-6 weeks since they are an out of stock item and have a couple questions for you fine folks here on MUD;

I'm a newb to the 62, but have had a few modded Jeep XJ's that I use to wheel in.... so not new to working on mechanical issues.. I just like the fact every nut and bolt is metric! And not a combination..... :doh:

Anyway,
Does the T/case rebuild kit includes the seals and o-rings that will resolve this issue?
Will I need anything else besides this kit?
Where/who has it at the best price?

This is my son's truck and since he's a community college kid on a budget, so I'm helping him out... but he's going to be paying and learning so in the future can do it himself.

:cheers:

Scott
 
Hey folks... I found this older thread in regards to ATF getting into the T/Case and well my son and I picked up an FJ62 a few months back and this appears to be one of the dillemas. Anyway, I've been reading some of the threads in regards to rebuilding the t/case and it doesn't seem too difficult. I've placed an order for the FSM thru Toyota publications that should hopefully ship to my in 4-6 weeks since they are an out of stock item and have a couple questions for you fine folks here on MUD;

I'm a newb to the 62, but have had a few modded Jeep XJ's that I use to wheel in.... so not new to working on mechanical issues.. I just like the fact every nut and bolt is metric! And not a combination..... :doh:

Anyway,
Does the T/case rebuild kit includes the seals and o-rings that will resolve this issue?
Will I need anything else besides this kit?
Where/who has it at the best price?

This is my son's truck and since he's a community college kid on a budget, so I'm helping him out... but he's going to be paying and learning so in the future can do it himself.

:cheers:

Scott

I think the vendors all sell the same basic kit. I got mine from Mudrak and Kurt at Cruiseroutfitters also has them. Toyota does not make a kit, you have to order each and every piece.

It does come with the bearings and all of the seals, as well as gaskets, thrust washers etc.

What none of the kits come with are the preload shims for the output bearing. Usually they are not needed, but I'm 1 for 2.

Also, while you are in there, give extremely strong consideration to replacing the transfercase input gear with a McNamara gear. There is only a short area of spline engagement on FJ62 cases and all of the input shafts (which is in reality the transmission output shaft) have significantly worn splines. This contributes to the thunk in reverse, high speed vibration and also to the tendency to leak fluid from one case to the other.

The transfer case rebuild itself is pretty easy, the kit is about $200, and the McNamara gear is probably $200 or so. Check RocDoc's posts, he recently did this, I believe.

Good luck and welcome.
 
Hi everyone, this is my first ever post on the forum. My name's Vince.

I have a 1985 HJ60, with the same issue.
Something I noticed when I changed the oil in the transfer and the oil came pouring out the filler plug.

I don't know enough about it to do it myself, so I'll probably have a mechanic do it.
I'm only just at the stage that I'm changing the oils myself.

What I'm wondering is, why does this happen? It seems like a common 60 series fault.
Did toyota put in a poor quality seal in the factory, or does the shape of the housing effect the seal.
Will putting a new seal fix it forever, or are 60 series drivers forever doomed to replace the seal every couple of years.
 
It is just a seal, and seals wear out. I don't know about replacing the seal every couple of years... most of these rigs have over 130,000+ miles on 'em. Maybe replacing the seal every 10 or 15 years sounds more realistic.
 
Here's a thread I did about the different trasnfer case seals.

https://forum.ih8mud.com/60-series-wagons/213919-transfer-case-seals-revealed.html

The seal for the FJ60 is a single lip seal. The seal for the FJ62 is a double lip seal (which should be better). At lease for my 5/1985 FJ60, it looks like the FJ62 seal will fit into my trasnfer case. I have the seal, but have not done the replacement. I thought mine was leaking (again), but I've been keeping a close watch on it and it seems to be OK.
 
Thanks for the link. I'll give it a read.

Ok, so its not a bad seal, its just that these 60s last so long.
 
I had this issue on my old A440 trans and 2H combo. I have since swapped it for one of the "extreme" transmissions Rodney builds in Australia. He and i discussed this problem and he said the reason these seals often fail prematurely is heat. His take was that all A440 auto trans REQUIRE an extra oil cooler. I have been running an oil cooler on the one he built for me with excellent results even after several years of trips to the high NV desert operating at 70MPH in hi heat and using 4:88 diffs. My old trans would get scorching hot and this one stays cool.

Anyway thought I would drop that into the discussion.
 
My take on it, the seals get rigid and brittle with time, and with the slop between the output shaft and input gear that is common on higher milage A440Fs (clunk), the seal gets worked back and forth and broken up. When I tore into mine, there wasn't much left of the seal.

I bought the full rebuild kit from Kurt at Cruiser Outfitters. I didn't use the whole thing, but have a second case to rebuild when I get around to it, so I'll just order the pieces I used to re-complete the kit for that one (it'll need the complete kit, as it's in worse shape than the one in the truck).
 
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