transfer case open
transfer case open
Senior User
Joined: Dec 2004
Posts: 460
Likes: 1
From: Edmonton, Alberta
Check all the bearing to shaft or bushing wear points for any scuffing or scoring. Replace the bearings and seals. Check the chain for wear -> hold it in the middle and if you can lift it more than about an inch with both the ends touching the table or bench then you should probably replace it - check with a shop if you aren't sure, most give parts or pieces a once over without charging. Make sure the bearings haven't spun in the housing. The blind bearing for the front output shaft usually doesn't ever need replacing and it's a real beast to remove. Watch out for the gear lash in the planetary, it causes a clunk in the drivetrain if there is too much. Clean the inlet filter for the oil pump and clean the springs and pistons in the oil pump. Also clean the magnet at the bottom. It's not too bad to work on this model but it can bite you in the *ss. I had to rebuild mine twice.
Woodler
Woodler
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
Another good way to check for chain slop is to look at the back of the case. See if there are marks on it from where the chain runs around. See if there is any gouging and scratches around these pieces. If any at all get a new chain. That chain can last a long time depending on how often the 4wd is used and abused.
Cargo Master
Joined: Nov 2003
Posts: 2,000
Likes: 39
From: North Dakota
Also, look for wear on the inside of the casing where the oil pump meets it. The case can wear down and cause your oil pump to spin, possibly causing some huge damage. This is what mine looked like a while back when I opened it up. I caught it just in time. In the first picture you can see the worn part of the case. I was able to fix it by welding a small rod on the end of the pump. The second picture is the fix. There are more pictures of it in my gallery.
Last edited by kameronth; Mar 30, 2007 at 01:33 PM.
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