Ok, we're trying to install one of those SLP Zexel-Torsen take-out posi's into a '95 LT1 car that came w/ 3.42's and the auburn.
After seating the original ring gear and ABS ring and torqing the ring gear bolts to 85 ft-lbs we tried to slip in the center block in the posi. It wouldn't fit. Couldn't clear the ring gear teeth, needed about 1mm (or less). So we pried on it a little and tapped the block in place. This, however, was done while the posi was out of the car and no axles installed. It would be somewhat more difficult to remove that block if necessary. At this point we removed it by unbolting the ring gear. So we now go about and repeat this while installed in the car w/ the axles. The backlash was set at 0.006". Now the block is even harder to get in. It just won't go. With the ring teeth every so slightly in the way it won't go in straight. Won't clear the teeth and now the far, tapered edge of the block digs into the gears inside the posi. The only thing else I can think of is to try grinding the crap out of the block i.e. make the wedge shape of the other edge more narrow. Maybe it would then slip in. We tried installing the c-clips while the block was already in place and just scooting it forward to clear the clips. That doesn't even seem like it would work. when trying this the block doesn't slip out far enough before contacting the edges of the teeth and the axles don't have the room to push in and clear for the c-clip install. It seems to us the only way to do this is to completely remove/install the block to gain access to the axles and install the c-clips. Another individual commented that we should be able to install the clips with out totally removing the block i.e. it wouldn't have to clear the ring gear. I don't see this happening. As I said, we tried.
Anyone experience this?
Any commends/ ideas?


thanks

md

 

Yes this can be a problem. Some gearsets have a thicker crown gear than others. SLP should have a two-piece block to correct this problem. At least they used to. Give them a call. If not call Zexel Torsen directly:

http://www.torsen.com/