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why did the front only have this problem? the rear hubs bearings brakes were already checked. I'll have the front checked and replace seals/boots.

Oh and thanks for all that chimed in.

Lifted the front end and the tires moved with resistance. I let air out of the brakes and wheel spins freely. So, I didn't do anything else. Took it for a ride and didn't have any smoking hubs. Must have locked up when I hit the brakes hard the one time.

ok will shut the valve. may get to it this week

one issue fixed ... got a new line and fittings for 6 bucks 2 to go...front bearings and fuel/trans pressure build up

Hard to pull of the hubs with one person...anyone want to help :cry: lunch/beer on me

Had someone else tell me that it's the bearings too. I guess after 30 years they go bad. Are they the same bearings as the rear? If so I happen to have a pair of new ones.

what would cause that? other than the fording kit being on? The only way I knew is because I bypassed the lines behind my cab

Is it normal for air to come out of the lines from the t case, trans and fuel tank when the brakes are let go?

I was talking to someone on line and they said it might be the bearings in the front causing the smoke...maybe I'll lift the front up and shake the wheel. Then I'll take the cap off and check the outer bearing. I still haven't figured out the air pressure problem.

UPDATE M923A1 front hubs smoking and air pressure in gas tank question Took my M923 (marine with fording kit) out for a ride and noticed smoke coming front 2 hubs. Seems like the brakes are on but are not really noticeable and it smells like brake pads. Also, I noticed that my air is coming out...