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Hi Everyone! I am thinking about converting from 14R20 to 16R20 tires on my 923A2. There are some for sale near me for $200 each and they appear to be in great condition/nearly new. Can I simply swap the 16R20 tires onto my stock wheels? If so, will my CTIS still work? How will my already...

Next issue with my M936A1 is shifting the transfer case. It currently is in low range. I am going to need to drive this thing to my home shortly and need tips and tricks on how to shift from one range to another. I read through a few threads that say to try fanning the brakes to reduce...

Hello All, Recently purchased a '85 M936A1 Wrecker with a NHC 250. It had not run in over 2 years. I went through and replaced the fuel filter and oil filter and drained/replaced oil and fuel. The fuel primer pump works but only barely. Seems like the internal seals aren't sealing as well as...

Hello All! I just concluded my first trip to Glamis Sand Dunes in my 923A2. Let me first say it was overwhelmingly successful. This truck went everywhere and had no issues. Its slow going but is just remarkable how well these things do when pushed. Also, I averaged 10 mpg on my trip up and...

While driving my M923 last weekend I noticed a very slight buzz/whine from the power steering pump when put under load. I dont know when the last time the system had the fluid replaced and was wondering if anyone had performed a power steering service. What fluid is used? Is there a filter...

Looking to convert my 14r20's to 16r20's. I have read a few threads regarding this subject but haven't found the info I'm looking for. I want to use my stock wheels and keep my working CTIS. Has anyone done this conversion and kept their CTIS working? How bad is the turning radius with the...

Lots of trucks showed up on GL. Does anyone have any information on this? Thanks.

Hey Everybody! This past weekend my dad, brother and I went out in out M923. During our time out my brother took some footage of the days activities. Attached you'll find the link where he put together a video. Lets just say he had some fun with it. Hope you enjoy, we certainly do...

I know this is a stupid question but I can't seem to locate the controller in the truck or in the TM's. Where is it?

A number of weeks ago I had a thread about an air leak on my 1987 M923A2 that was shut down. This post is addressing the points discussed from that thread. The symptom was a hissing sound coming from the intake stack and rapid air loss of the secondary air system. After much searching around...

Hello, Driving my truck yesterday and had the fan coming on and off in a very normal manner. I parked it and shut the engine off,after a few minutes I hear the prominent hissing of leaking air. Its coming from the engine compartment. I pop the hood and start looking and come across the fan...

Hello All, My truck shift quite harshly from 1st to 2nd when trans is up to temp. Shifts smooth when cold and gets harsher as it warms up. Any ideas for smoothing out the shift? Its running motor oil. Thanks.

Just bought a M923A2 and got it home. I can hear air hissing in the intake stack after Ive turned the truck off. After an hour or so the hissing goes away. When I restart my truck, the primary air pressure gauge reads pressure but the secondary gauge shows 0. To verify I started the truck...

I am trying to find out how to get a bill of sale from GL. I live in CA and was told I had to have a BOS in order to register. Is there a link on the site to get a BOS? Regarding the SF97, must I wait til I pick up the truck to submit it? Really excited to get one of these trucks!! Thank...

Hello All, Where can I find more information regarding M1070's? I cant seem to locate the forum, if one exists. Thanks for the info.

Hello All, Ill try to keep this brief. How does one go about removing a running truck from a GL site that states a vehicle must be towed/trucked off? Can a fellow SS member pull the truck off site with a strap? Do I need to employ a formal tow service? Im looking to purchase a truck from...

I am looking to bid on a GL auction M923A2 at Fort Bliss in Texas. Is there anyone near who would be willing to inspect on my behalf and provide feedback? Thank you in advance. Feel free to reach out. Erich (714) 488-2100 Im in Orange County CA.

I have been reading recovery stories and am thinking about recovering a truck and driving back to CA. The name Jeff Laumer comes up many times with people who pick up from Sparta, WI. How can I get in contact with Jeff to pick his brain about his services? Thanks for the info. I apologize...

Looking into buying a M923. I live in Orange County, CA and was hoping someone could share their experience. I am new to this community. Feel free to give me a call. Leave a message if I dont answer. Thank you, Erich (714) 488-2100

Hello Everyone! I am looking to buy a surplus M923A2 that doesnt run and has less than 400 miles on the ODO. I like the low mileage but as the truck is a 1990 Im worried about deterioration of components in the engine, transmission/drivetrain and fuel system. The truck is really clean and...