Powerboat Forums at SpeedWake banner

1 - 7 of 7 Posts

·
Registered
Joined
·
368 Posts
Discussion Starter · #1 ·
Guys,

I have traced my front end noise to a bearing in the front diff. It is the drivers side and is visible once you remove the half shaft. The problem is I cant figure out how to release it. It has a threaded hub on it that looks like a propeller hub where you bend the tabs in to keep the prop nut on. There is a lever that keeps the threaded part from backing out. I cannot get this out of the way to back the bearing out. Anyone know how to get this out?

chevy57
 

·
Registered
Joined
·
109 Posts
I have rebuilt tons of these. Usually the noise is not the bearing you are looking at, even when they are run low on fluid that is the last bearing to go bad. The noise is usually the side carrier bearings or/and pinion bearing. Any way you have to remove the differential and split it apart to change the axel bearing you are refering to. The threaded collar you are refering to sets the ring/pinion depth and only threads out form the inside. Don't forget the hub bearing. That is the most comon noise in the front of these trucks.
 

·
Registered
Joined
·
368 Posts
Discussion Starter · #4 ·
Cartman,

Thanks for the input. I thought it would be the hub bearing, but when I took it apart it feels fine. It is smooth and tight through the whole rotation. So I started wiggling things around and checked the half shaft. In the process I could see the axle flange that goes into the Diff moving around. I removed the half shaft and this axle flange was really loose and not just in and out, but side to side as well. Since I will have to pull the diff I will check the other bearings. Thanks again.

chevy57
 

·
Registered
Joined
·
368 Posts
Discussion Starter · #5 ·
Cartman,

Great call on this. I started removing the passenger side hub and wheel bearing and when I got it out I gave it a couple of turns and noticed that it did not take as much force to turn the passenger side as it did to do the driver's side. I decided to replace the bearing / hub assembly first. This solved my problem. It is a little hard to believe that this was the problem as the bad bearing was not lumpy at all just a little tighter than the good one. Anyway thanks for your advice it saved my a boat load of time.

chevy57
 

·
Registered
Joined
·
109 Posts
Yes, the hub bearings usually feel fine at first by hand ( even when noisey on the road), you can only feel them by hand when they are really blown out. The weight and load of the truck is what agravates them. They radiate through the front end and can sound like other things. The axel movement you were refering to is pretty normal on a truck with a few miles. They are sloppy to begin with, don't worry about it. Glad to help.
 
1 - 7 of 7 Posts
Top