Cone type sure-grip
- Thread starter 6PK BEE
- Start date
BB71Challenger
comparing distributors and
HTF do you rebuild the cone types? I have 3 sure grip cone types and 1 clutch type, I was always under the impression that the clutch type was rebuildable and the cone types were not. :hmmm:
beeper*71
This space for rent
Dr.Jass
Pastor of Muppets
All Mopar Sure-Grips will interchange; you can put a clutch-type in a 489 (I bought an original that way--late '68) and a Borg-Warner coney will go in a 742. You just need to use the side bearings for the correct case: 742SG side bearings for a clutchy, 489SG side bearings for a coney. This holds true for 741, 657, and 985 cases as well.
Yes, I know how to rebuild a cone-type using all factory parts in factory locations. Some machining is required, but no welding. I have this knowledge, yet for some reason I do not share it. I guess I'm greedy.
But I do have a machinist set up to do that which I can't, and I think I have parts to do at least 4 or 5 more, and I can find more parts easily enough... they're everywhere. :bwuhaha:
Don't get mad... I told beeper*71 how I did it, and I even told him where the parts can be found--they're as common as gonads. Bamboo slivers under his toenails should jar his memory. [smilie=g:
[I]ALL[/I] factory coneys were two-piece bolt-together affairs, and thusly I can service any of 'em. Some used 5/16" case bolts and others used 3/8" bolts. No prize for guessing which one's stronger.
The Auburn unit is a one-piece case and though I have no reason to believe I couldn't fix one, I've never tried. The factory never used Auburn diffs; the Auburn diff didn't even come out until long after the 8¾" was phased out of production. The Auburn unit is a slightly-modified version of the factory coney, which was manufactured by Borg Warner. Auburn bought the patent from BW in the late '80s, if memory serves. It uses the same side bearings as the factory BW cone-type.
Yes, I know how to rebuild a cone-type using all factory parts in factory locations. Some machining is required, but no welding. I have this knowledge, yet for some reason I do not share it. I guess I'm greedy.
But I do have a machinist set up to do that which I can't, and I think I have parts to do at least 4 or 5 more, and I can find more parts easily enough... they're everywhere. :bwuhaha: Don't get mad... I told beeper*71 how I did it, and I even told him where the parts can be found--they're as common as gonads. Bamboo slivers under his toenails should jar his memory. [smilie=g:
[I]ALL[/I] factory coneys were two-piece bolt-together affairs, and thusly I can service any of 'em. Some used 5/16" case bolts and others used 3/8" bolts. No prize for guessing which one's stronger.
The Auburn unit is a one-piece case and though I have no reason to believe I couldn't fix one, I've never tried. The factory never used Auburn diffs; the Auburn diff didn't even come out until long after the 8¾" was phased out of production. The Auburn unit is a slightly-modified version of the factory coney, which was manufactured by Borg Warner. Auburn bought the patent from BW in the late '80s, if memory serves. It uses the same side bearings as the factory BW cone-type.
sleeper448
Well-known member
Dr Jass, do you have ant spider-gear pinions hanging around , I need one.:shifty: