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HMMWV questions

2mas-

Member
53
4
8
Location
Norway, Kr.Sand
Hi,

Some different questions about HMMWVS

What HMMWV models have the 12K setup as default? What models have the turbo engine as default? What models have 4l80e transmission as default? Does the newer HMMWVs have ABS brakes?

Thank you
 

Wire Fox

Well-known member
1,252
161
63
Location
Indianapolis, Indiana
It looks like it's the M1151, M1152, M1165, and M1167 that would be turbo from the get-go. I'm not sure on the 12K...but I think that's everything that's an A2 series. Someone please correct me if I'm wrong. Same for the 4L80E: it's everything A2 series and up, plus some of the earlier "heavy" variants that were used as the basis for the A2 series. As for ABS, I'm confident that no HMMWVs have ABS installed. The brake upgrades on the HMMWV throughout the years was first changing the the driveshaft parking brake to be on the rear calipers instead. Later in the ECV HMMWVs, they then upgrade the brakes to Wilwood calipers, which I understand are larger and required special access panels to be installed in order to service the calipers.
 

MaverickH1

Member
345
6
18
Location
Roanoke, VA
ABS was a huge pain in the ass to develop on the Hummer H1. It required quite a few changes to meet the FMVSS beginning in model year 1999. They sold it as a benefit with TorqTrac 4 labels, an electric traction control. Brake throttle modulation was no longer possible to the extent it could have been previously used.

The HMMWV never had it.
 
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