I suspect that your G-20 originally had an American Axle semi-float with a 14-bolt diff. The 10-bolt's too light for the job, must've been swapped in by a previous owner who didn't pay attention to the axle-weight and torque ratings.

The lightest transfer cases to my knowledge that have overdrive are built into the crawlerboxes on Class-5-and-up Macks. Even StaK 4x4 transfer cases don't have overdrive among the gear options; neither does Advance Adapters.

:-k Early January 2022, the blower speed selector on my 1997 M11006 broke, leaving me the two slowest out of four speeds. How common is shaft breakage for 1996-2005? Short of replacement of the whole A/C control unit (which has a thermostatic switch and vacuum valves in addition to the switch descri...

:heart: I've recent experience with the secondary wires on a V-6; my 1997 M11006 is equipped with the Vortec 4300. The shortest and longest wires, which go to the foremost left (#1) and aftmost right (#6) cylinders, respectively, have the straight boots as a hedge against burns of the wires themselv...

@Astrophysics Congrats on a successful pump replacement. I's considering the MU1380 (General Motors Corp. P/N# 15036173) as a stock upgrade for my M11006 three years ago.

Good tips. Thanks. Lucky you still have your "skid plate", thought it's pretty thin and I don't think it could take much skidding. It's more of a flying debris shield. Mine completely rusted and fell away. 8-[ Serious skid plates for four-by's are at least 16 AMG. Gotta design a full set ...

:-k @ Astrophysics Gotta be a leak somewhere in the system, in addition to at least one clog in the refrigerant loop. I know that my M11006 has a compromised return line to the accumulator -- abraded aluminum on the inside of the line from the rear evaporator where the fuel lines to the injector ass...

Does the lock assembly itself have issues? I'm extrapolating from experience with my M11006, which, I suspect, didn't have enough meat on the release pawls to allow for wear (see Passenger door, BOTH handles broken. How open?).

Hi All! Searched as best I can but couldn't find an answer to this question. On a 2003 Astro w/ stock engine. Bought it with the evil P0300 code. Can do highway speed just fine but can feel some vibration as the engine runs a little "rough". Trying to troubleshoot the P0300 DTC code. Engi...

Hi All! Searched as best I can but couldn't find an answer to this question. On a 2003 Astro w/ stock engine. Bought it with the evil P0300 code. Can do highway speed just fine but can feel some vibration as the engine runs a little "rough". Trying to troubleshoot the P0300 DTC code. Engi...

Hi , The Manik brush guard was actually for a 1999 GM truck. I was not able to find an exact Astro grille or brush guard kit either. A company in WA called Mule Expedition tried and fabbed a few ARB full winch bumpers for Astro a few years ago. They are about 150 lbs. A welded brush guard is about ...

Astrophysics wrote: ↑Tue Aug 24, 2021 6:58 pm Photo
DE0E59AE-99A3-4DA2-954F-565F73DE6536.jpeg

@Astrophysics What make and model nudge bar? I did searches for grille guards on craigslist™ Stockton and Modesto and ebaY® Motors™, unsuccessfully.

@ Herbie For my issue 1997 M11006, I'm definitely after more pad area, on as large a rotor as upgrade wheels will permit. The 6-on-5½" bolt pattern for the 2003-EoP General Motors M-Body uses larger rims than my current 5-on-5" pattern and is wide enough for the planned 9" Currie full...

:cheers: @ Cozy9 Thanks for the research on 2000-up ignition-switch componentry. My issue 1997 M11006 left Baltimore (MD, USA) Assembly before transponder keys became a thing at General Motors, and I gotta replace the door latch assemblies anyway (which requires popping the inner door panels, also f...

:cheers: Thanks, @ PhyllisRYeager , for the hyperlink. OnlyPDFManuals.com covers user Manuals for both brands of the 1999-2005 General Motors M-Body mid-van; don't have to extrapolate much to cover my 1997 M11006. Hopefully the Shop Manual covers the engine side of the steering column: My M11006 has...