ACDelco GM Original Equipment 88962315 Transfer Case Range Select Position Sensor

Fix my four-wheel drive issue and was more reasonably priced than aftermarket parts. Highly recommend. Bought for a 2005 Chevy Tahoe.

Used on a 2004 Silverado Z 71 with service 4wd problem. Installed and it has fixed my issue.

Fixed my red light error on my 4x4 selector switch on my 2004 Avalanche. Encoder motor cost over $100. This was actually very easy to replace and super cheap compared to the alternative. Had it on my truck since 2021 and still works great!

This fits my 2005 Silverado and is located inside the 4WD shift motor. Easy install once the motor is removed and the entire repair took less than an hour. Remove the skid plate, remove the front drive shaft, unbolt and unplug the shift motor. Remove 2 screws to open the shift motor, mark both gears with a marker to ensure proper alignment during re-assembly, unplug and remove encoder ring. Replace with new encoder and put it all back together. No more issues with the transfer case and now it shifts right every time.

2004 Chevrolet Tahoe was switching to auto 4x4 at every start up and would not go into 2 wheel drive, it would just blink, then go back to auto 4x4. I tried switching the push button switch, but it didn't fix the issue; however swapping this fixed it. There are many tutorials online with how to do this swap, so I'd you're somewhat mechanically inclined this could save you a lot of money. You do have to remove the drive shaft to get this part out. Note: Part goes behind the larger gear in the photo.

06 Yukon xl 2500 with np8 t-case and auto 4x option. service 4x4 message was displayed and the car never seemed to know which gear the t-case was in. some times it would be in low when i started it. sometimes it worked flawlessly at first than it would quit working all together. the part was easy to install, just make sure you mark the position of the two gears in the encoder motor before you pull them apart. the whole process took about 45 minutes and so far the problem is completely gone. not many miles on the repair but so far so good.

Excellent OE part

If you buy this make sure you get ac delco. All other brands don't seen to last as long. Other than that don't expect to get more than 3 or 4 years out it. It is the only thing about my 2005 chevy silverado that bites. I've probably replaced it 5 times owned since 2006. That because I tried cheaper off brands twice