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SS Rear Differential Cover

H3/T  Hummer U Bolt Skidz

H3 Rear Door Antenna Brackets

Off Road Flag Bracket

Air Doc
Performance Intake Systems
for GM Trucks & SUVs

We can ship World Wide!
Contact us for a shipping quote
outside the 48 connected States


Northeast of the Motor City
Suspension Protection & Off Road Brackets

Using Computer Aided Design, Water Jet, CNC Plasma and Laser cutting, with a full complement of machine services, Roc Doc has made these superior custom parts that are available nowhere else!

Stainless Steel Suspension Protection and Brackets for the serious Off Roader that demands the best and expects the most from their vehicle.

Click on picture for information

  H3/T Hummer Differential Cover
Diff Cover front pg
304 Stainless Steel
  H3/T Hummer U Bolt Skidz
U Bolt Skids front pg
304 Stainless Steel
H3 Hummer Antenna Bracket
Antenna Brkt SM
304 SS or Mild Steel
Off Road Flag Bracket
Off Road Flag Brkt SM
Mild Steel

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