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Turns out the ECV disc I purchased was incorrect. The correct rotor was discerned and sourced from HPG! While waiting for the correct rotor to arrive and with the M1151A1 up on jack stands, I worked on other items needing attention. I installed the rebuilt Propeller Shafts with the new Ujoints...

Thank you, I’ll inspect the passenger side caliper and rotor tomorrow. As for the Calipers are they front and rear interchangable, my part number is 6040401, 2530-01-565-9660 per Wilwood website it is a front ECV caliper. I got the power steering hose and will put it on tomorrow as well Thanks!

Can you send me some good pics of your front left brake rotor and caliper mountings, I think I put my rotor on backwards/flipped and need some help on how it should look. Mine was missing a lot of the front left brake components so i pieced it back together with online parts orders.

Great I’m glad I could help! I searched all the local auto parts stores and the GMC dealership and no one had a clue? Amazon had the fitting but not the tube… Good luck and have some fun with that HMMWV!

Thank you very much!

I won a GovPlanet M1151A1 in non-running condition in June with a bunch of parts ”Harvested”. The Propeller Shafts were pulled and thrown in the cabin with Ujoints missing the caps, the Start Box and wire harness coupler was arc welded and fried, TCM and box missing, left rear seat missing...

There are two ports or fittings in the right rear of the 4L80E trans which have metal tubes that snap in. You last pic has the front metal tube in the hose and snapped into the front port. You need the rear tube whic has to be inserted in your rear empty tube, hose clamped in place like he front...