Jeepwalker
Well-Known Member
- Messages
- 980
- Location
- WI
Hey all,
Just thought I'd put this out there for current and future Hummer H3 owners who's are looking to replace their truck's shocks with GM correct shocks (before I forget the details). There were a few different suspension packages offered for 2007 which can make finding the 'correct' replacement somewhat confusing. The below numbers are for the ZM6 Off-Road Suspension Package which includes the 285 tires, 4:1 transfer case, Locking rear diff, and "Specially Tuned Shocks", they may be correct for other years as well, not sure. The GM shock number stamped at the bottom of my 07 H3's rear shock is 15295276 (rear). Other numbers stamped next to the factory part number include: 11984 A3333 1A. Probably lot, factory and date designations (??).
The replacement numbers should be:
Rear: 560636 (Delco) / 20864275 (GM#).
Front: 540200 (Delco) / 15834280 (GM#).
Note: I just received the new Delco's from Rock Auto. They look 100% the same as the originals with the exact same-looking plastic dust/rock shroud, etc. I haven't installed them yet to test. Believe it or not, after 160k miles and 12 yrs the shock I checked through the stroke still seems seem good. There was so much gas pressure it took a lot of arm-strength (plus a screwdriver) to hand-compress the shock to get the bottom bolt reinstalled.
If I made any errors, please correct. If you have info for shock replacement for other suspension packages, please post. Obviously the part numbers above could change per GM revisions.
Thank you.
Just thought I'd put this out there for current and future Hummer H3 owners who's are looking to replace their truck's shocks with GM correct shocks (before I forget the details). There were a few different suspension packages offered for 2007 which can make finding the 'correct' replacement somewhat confusing. The below numbers are for the ZM6 Off-Road Suspension Package which includes the 285 tires, 4:1 transfer case, Locking rear diff, and "Specially Tuned Shocks", they may be correct for other years as well, not sure. The GM shock number stamped at the bottom of my 07 H3's rear shock is 15295276 (rear). Other numbers stamped next to the factory part number include: 11984 A3333 1A. Probably lot, factory and date designations (??).
The replacement numbers should be:
Rear: 560636 (Delco) / 20864275 (GM#).
Front: 540200 (Delco) / 15834280 (GM#).
Note: I just received the new Delco's from Rock Auto. They look 100% the same as the originals with the exact same-looking plastic dust/rock shroud, etc. I haven't installed them yet to test. Believe it or not, after 160k miles and 12 yrs the shock I checked through the stroke still seems seem good. There was so much gas pressure it took a lot of arm-strength (plus a screwdriver) to hand-compress the shock to get the bottom bolt reinstalled.
If I made any errors, please correct. If you have info for shock replacement for other suspension packages, please post. Obviously the part numbers above could change per GM revisions.
Thank you.
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