Powertrax 9207762805 No-Slip Traction System (GM 7 5/8", 28 Spline Open)

I installed it a few days ago. It seems to be working fine so far.Pretty easy to install on an 03 s10. Installation tips:- Make sure that you don't get any rust on the teeth (from a rusty diff cover or something on the ground) as the parts need to be fully-seated to get them on the axles.- Go light on the bearing grease as bearing grease attracts debris (which is difficult to remove without scrubbing the piece with dish-washing fluid).- For the pinion shaft bolt, I would suggest a 3/8" swivel joint to make sure that you hit the bolt dead-on, as it can be easily rounded-off if you hit it at an angle. (also pull off the passenger axle bracket thing for better access)- If a pinion shaft spring falls out while the device is installed (before installing the shaft), a very thin screwdriver can be inserted into the coils of the spring and it can be easily re-lubed and installed in the hole.

GM 10 Bolt 3.42 7.625. Great results. Two wheels spinning 100% of the time. Install can be difficult when putting in last gear. I used a rubber mallet to squeeze it in.