I have a 8.75 741 open and 741 clutch center section and a 489 cone style center. they all appear to have thrust spacers in them except the 741 clutch ones are much smaller in diameter than the other two. The small ones are about the size of a dime and the bigger ones are the same diameter of the axle shaft. Is this correct? And if so, can it be run or do they or the axles need to be changed? Thanks.
Sure grip thrust button (spacer) question
- Thread starter dgibby
- Start date
-
Sounds correct. The axles from one to the other will work, provided you're using stock style tapered bearings. The clutch style uses two buttons on a thru pin, the cone and open have a " block" between that floats with axle adjustment.
That's what I was afraid of. Wasn't sure if the spacer was missing or if the little one was the spacer. I put a magnet on it and it's not coming out.
69_340_GTS
Well-Known Member
If you don't have the old style adjustable tapered wheel bearings, it is my somewhat educated opinion that those thrust spacers/buttons need to come out. As mentioned before they can fall out and cause major problems. And believe it or not they can also cause non-adjustable wheel bearings to not "seat" fully in the axle housing, normally on the side that was last assembled. That can cause the bearing retainer to get bent and also leak oil.
if they're in there good and you have the factory tapered bearings you should be fine.if you you use the sealed bearings the spacers do need to be removed.
mike bee
Rodzilla
Well-Known Member
I have a 489 case with auburn suregrip. To run my moser axles with green bearings the thrust spacer had to come out.
-
