Is there a drain hole somewhere on the bottom of front differential? I can only find the fill plug mid way up the cover. If that's it, how do you change the fluid?
Thanks.
Yamash
Draining front differential CJ3B
Jan 30, 2006
10 Replies
They figured you like the smell and feel of old gear oil so you have to pull off the cover to change the fluid.
It is a good idea anyway so you can get any dirt and gunk out.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail >Thanks for the advice, Mike. Looks like a fairly easy job. It's been sitting for 30 years so no telling what's living in there.
Yamash
It doesn't show anything at that link Bill.
If it has a drain, I still would open it the first time to make sure it isn't full of gunk.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail >
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Yamash did pass the time by typing:
Just remember to leave the top bolt backed out, but still threaded in. It keeps the cover from falling into the oil pan when you pry it off.
Also it's a good idea to change the fluid after a short run. Warmer fluid drains more effectivly.
Thanks all - the rear differential does have drain with 1/2" square socket. The front one does not have any drain in bottom. At least this one doesn't. I'm yanking the cover off and cleaning it out. Maybe I'll find the damn thing then. Then on to knuckles, wheel bearings, finish brakes, etc...fresh gas and it fired right up.
yamash
And be sure to use a good sealant like this:
PERMATEX® ULTRA BLUE® No Leak RTV Silicone Gasket Maker
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to seal the differential cover after you scrape off all the old gasket material and clean it really well.
Tom
There is no drain plug, you have to remove the cover to drain the diff.
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