devices and the nearest structural part of the body or chassis. Bonding straps shall be attached
using corrosion-resistant bolts and nuts, and using two internal-external locking washers at each
attaching point to assure positive electrical connection.
188.8.131.52 Exhaust system and spark arrester. As specified herein (see 3.4.4 and 184.108.40.206),
the exhaust system shall be modified as necessary to minimize the chance of accidental fires and
the entrance of exhaust fumes into the cab. A spark arrester shall be furnished except on
220.127.116.11 Silicone brake fluid. When specified for class A vehicles (see 6.2), and if
available as the manufacturer's standard or optional brake fluid, brake fluid conforming to
MIL-B-46176 shall be provided in the hydraulic brake system. A tag shall be placed near the
master cylinder stating "CAUTION: USE SILICONE BRAKE FLUID ONLY, MIL-B-46176."
18.104.22.168 Brushguard. Model 4x4 and 6x6 vehicles shall be equipped with a radiator and
headlamp brushguard. When the headlamps are recessed in and protected by the front bumper, a
headlamp brushguard is not required.
22.214.171.124 Brake lights. At least one pair of brake lights shall override the four-way
emergency flasher on the two systems shall be independent of each other. Modifications to the
manufacturer's standard product to accommodate this requirement shall not compromise
conformance to any Federal Motor Carrier Safety Standard. If additional lights are added to the
vehicle, the lights shall be selected from the chassis manufacturer's standard matching hardware.
126.96.36.199 4x4 and 6x6 conversion. The chassis manufacturer's standard 4x2 and 6x4
truck chassis may be modified to provide all wheel drive conforming to the requirements
specified herein if:
The conversion axle manufacturer's engineering department specifically approves
and certifies that all such modifications meet the design requirements and standards
of the conversion axle manufacturer. Certification shall be based on both design
analysis and proving ground test reports, which shall be made available to the
engineering and quality assurance offices of the procuring activity.
The chassis manufacturer's front axle before conversion has the same load rating as
the conversion axle to be installed.
Components used in the all wheel drive conversion are of current production.
Components used in the all wheel drive conversion are approved for the conversion
application by the component manufacturers.
The converted vehicle is certified to conform to Federal Motor Vehicle Safety
Standard, No. 121, by the intermediate or final manufacturer.
Replacement headlights, if required to be added, shall meet the height requirement
of not less than 22 inches and not more than 54 inches, measured above the road
surface, in conformance with Federal Motor Vehicle Safety Standard No. 108.