Am I SOL on 8.75

[bargeahead]

Got the "new" 68 8.75 torn down and after draining the housing noticed metal shavings then did some yoke rotating. Is this just an adjustment issue ? From what I can see all the gear teeth look good.

 

[DRENO]

bump for ya Roger ,due to high volume of threads,I'm guilty sort of.8)

 

[crackedback]

489 case I'm betting and the crush sleeve crushed a bit more, losing preload on the assembly, and the yoke nut came loose.

If it is a 489 case, it should be pulled apart and everything checked out. Replace the crush sleeve with a solid spacer.

 

[69B-Cuda]

check everything like Crackedback said, it is also possible that the damage you are seeing is old, but I'd pull it apart to be safe.

 

[oldkimmer]

..........68 will b a 742 case, yes the pinion nut came loose at 1 time........u will probably b putting in some kind of anyway, gears usually dont get damaged.........kim..........

 

[bargeahead]

THX guys and yep, it's a 742 case. Any tricks I should know about putting it back together ? The last one of these I messed with was 40 years back and I wasn't the one messing with it. Thanks again.

 

[Supershafts]

That line going across the ring all crossed up has me curious....

If you rotate it by hand does it take the same amount of pressure to make a full revolution or does it get slightly tight in 1 spot....

 

[bargeahead]

Rotational resistence is constant. No fore & aft end play and rocking the yoke has enough play to hear but not measure. I didn't give the groove much thought figuring a shaving got caught but wasn't considering the gear steel would be harder.

 

[bargeahead]

I have found and made a commit to by an A-body ready 8.75 so the one I have now from a 68 Coronet is taking up space. I paid $450 in the blind for it ( OK silly me ) then found the internal scarring. I don't know how serious this is. The entire unit is drum to drum " 11 inch " ( drums do need turned but not bad ) with a 3.23 open 742 and BBP 30 spline axles. Considering the possible or not damage to the differential can anyone give me a fair market value ?

 

[65 Dartman]

Am also wondering what the value might be as I have a 70 B Body rear end that I'm not gonna use.

 

[bargeahead]

Am also wondering what the value might be as I have a 70 B Body rear end that I'm not gonna use.

I have found and made a commit to by an A-body ready 8.75 so the one I have now from a 68 Coronet is taking up space. I paid $450 in the blind for it ( OK silly me ) then found the internal scarring. I don't know how serious this is. The entire unit is drum to drum " 11 inch " ( drums do need turned but not bad ) with a 3.23 open 742 and BBP 30 spline axles. Considering the possible or not damage to the differential can anyone give me a fair market value ?

Anyboby have any ideas ?