Dorman 600-910 Transfer Case Motor Compatible with Select Models

First off, the product quality seems good and it fixed my issue.2005 suburban z71 with np8 transfer case and 4 button selector switch.My issue: service 4wd indicator and truck stuck in 4wd. Scan tool pulled c0321 code.Diagnosis: checked fuse (TREC) first. Then checked for corrosion/broken wires under fuse box in engine bay. Check for connections and corrosion behind knee plate under dash at TCCM. The TCCM is located on drivers side above emergency brake petal. Checked selector switch in dash with scan tool. Engaged/disengaged front axel with scan tool.Checked wiring/plug at encoder motor on t case. Verified 12v at the big orange wire in the connector. Then verified 5v at green wire.At this point I feel pretty confident it’s the encoder motor.Removal/Install: This is an easy job. Remove the skid plate below t case. Remove front driveshaft (it needs to go back the same way on the front diff so mark it before you take it apart). Unplug encoder motor. Remove the three bolts holding it on. Pull it out.IMPORTANT: The new encoder motor comes in the neutral position. The shaft on the t case has a key way on it. That key way needs to be facing straight down towards the ground which will put the t case in neutral. You need to put the vehicle transmission in neutral in order to turn the shaft on the t case!! Use wheel chocks please!! Once the transmission is in neutral, grab the shaft carefully with a pair of pliers and turn it so that the key way is facing down. Now you can install the encoder motor. Make sure you clean/reuse the gasket or, preferably, get a new gasket. There is a specific order to tighten/torque the bolts. Just google it. Clean/Reinstall everything else.Potential Problem: Here is what I wrote this review for bc I couldn’t find any information for the problem I encountered. When I turned my truck on, the lights on my selector switch flashed and then they all turned off and the t case wouldn’t respond. I scanned and pulled like 6 codes for the t case! Here is what I did. Check the plug to make sure it’s connected. Take both battery cables off the battery and touch them together for a few minutes. Reinstall and try again. I think the TCCM has to reset. Fired the truck back up, neutral light was illuminated on the switch and it shifted into all selections flawlessly. Hope this helps someone!

This part was an exact match to my original motor. Easy install and works great. Hopefully it will last as long as my original (199,000 miles).

Bought in October 2016, stopped working May 2017, i.e., only works for 7 months!My 2005 Tahoe wouldn't go into 4WD - L, then it wouldn't stay in 2WD-H -- it would slip into neutral, had to put in AWD to work. One installed, part has not solved all problems for months. Once person wrote wouldn't install. Can only wonder if they didn't make sure the 600-910 was not in same transfer case gear position as transfer case was in (hope you follow). BTW, the A-1 YouTube video on installing was not useful because my front drive shaft boots were clamped on with some crimping tool. Even the video of using pliers and screw driver to take off clamps didn't work. So I paid an off duty mechanic -- he didn't take off drive shaft, he just used open ended wrench (end was skewed from straight a bit) to install part.I live in DC and thank goodness it was working for Snow-ma-geden

Fixed my Tahoe 4X4 issues. Easy fix

Installed on my 2005 Chevrolet Avalance Z71. Installed 2 months ago and have had no problems since.Suspected this part needed to be replaced after reading multiple Avalanche forums about faulty 2WD/4WD systems. Had already replaced the dashboard selector. Then late last Fall, I noticed that none of the 2WD/4WD options would like up at all - not even 2WD and could not get truck to shift into 4 HI or 4 Low.Installed fairly easy with one caveat you should be ready for:This part is shipped in Neutral. My truck was in 2WD, so the new part would not line up with the transfer case when it came time to install. If you have followed service manual instructions to this point, your battery is disconnected. Plug the new part into the harness, and then put something under it to support it's weight so that it doesn't hang freely. Then reconnect your battery, turn the ignition to ON, and select the gear your truck is currently in (2WD in my case). You should hear a click or something like that from the part. Go back under your truck and once you've selected the correct gear, it should snug right up to the transfer case with absolutely no forcing. The male part on the transfer case has just enough play in it to help it line up if needed. IF YOU ARE USING A HAMMER OR MALLET, YOU ARE DOING IT WRONG!!!!!!!!!!!Also, read several reviews that said it wasn't necessary to remove the front driveshaft. Maybe its not, but life is much easier if you do. Just make sure to chalk the alignment at the front of the driveshaft for reinstallation. That was the part I was actually most nervous about, but turned out to be no big deal at all.One other thing - Amazon recommended a gasket to be purchased with this part AC Delco #12384990. It's not even close to correct. You'll see the gasket when you remove the old part - it's a solid piece of hardened plastic. My truck is 11 years old and the original gasket was fine to keep using. I just blasted it with some brake cleaner and wiped it off really good.

WARNING: DO NOT change the position of the transfer case motor to line up with your transfer case. ONLY change the position of the transfer case to line up with the motor. This part ships in neutral, if you're like me the transfer case will be in 2WD. It seems some people have gotten this to work but it caused my part not to work and I had to purchase it again from a local retailer, for $100 more, in order to get it all to work. There are no instructions provided with the part, but the amazon description does say to change the transfer case to match the motor, I just didn't read it until after the fact. Learn from my mistake. Other than the lack of physically provided instructions the second one I bought worked like a charm and so far (less than 100 miles) has fixed my SERVICE 4WD message on my 2006 Silverado Z71.