741 Cone Type - looking for tear-down/build up info
Google Aurburn limited slip. They are essentially the same. Yes, they can be rebuilt....sort of. I've done several. The cones wear the case to the point that they bottom out in the case ends. when this happens, they lose the ability to lock up. I have successfully dissassembled several units and repaired them. Here is how I did it. Dissassemble the carrier, some bolt together in two pieces Some are one piece. Remove the preload springs, spider and pinion gears. Remove the side gears and finally the cones. On the outside face of the cones (the small side) you will need to remove enough material so that the "screw" portion of the cone will again engage the inside of the case. How much is strictly up to you and how badly you think the assembly is worn. I have removed as much as .100". It is very important that you add this same amount removed in shims on the large side of the cone, in between the cone and the side gears. Failure to do this will not get the preload you need and could also result in the side gears disengaging from the pinion gears. This is not covered or suggested in any repair manual. It is just a trick that I learned through the years and it will work well if done properly. It will work even better if you install new preload springs. I don't recommend this repair for anything but mild street cars. It was simply out of being broke and destitute that I concocted it in the first place.
Here is a diagram.
The diagram makes the cones and side gears look like they are one piece. They are not. the shims you need to add go behind the side gears in between the side gears and cones.
Google Aurburn limited slip. They are essentially the same. Yes, they can be rebuilt....sort of. I've done several. The cones wear the case to the point that they bottom out in the case ends. when this happens, they lose the ability to lock up. I have successfully dissassembled several units and repaired them. Here is how I did it. Dissassemble the carrier, some bolt together in two pieces Some are one piece. Remove the preload springs, spider and pinion gears. Remove the side gears and finally the cones. On the outside face of the cones (the small side) you will need to remove enough material so that the "screw" portion of the cone will again engage the inside of the case. How much is strictly up to you and how badly you think the assembly is worn. I have removed as much as .100". It is very important that you add this same amount removed in shims on the large side of the cone, in between the cone and the side gears. Failure to do this will not get the preload you need and could also result in the side gears disengaging from the pinion gears. This is not covered or suggested in any repair manual. It is just a trick that I learned through the years and it will work well if done properly. It will work even better if you install new preload springs. I don't recommend this repair for anything but mild street cars. It was simply out of being broke and destitute that I concocted it in the first place.
Here is a diagram.
The diagram makes the cones and side gears look like they are one piece. They are not. the shims you need to add go behind the side gears in between the side gears and cones.