This is a new old stock Haldex PURest air dryer upgrade kit for your FMTV! I installed this kit on my M1078 LMTV to confirm. Only 3 new fittings are needed for this to be a no modification, bolt on upgrade & I'm going to include them with it! The adapter plate matches the holes already in the frame for the old air dryer.
One air line will need to be cut shorter. A straight 5/8 flare adapter is needed to replace the 90deg on the old dryer. Lastly, a 1/4in to 1/8in bushing is needed for the control line. This kit will be less work than servicing your old air dryer. Due to being new old stock, some boxes may be in bad shape but if they are, I opened it to confirm that everything was okay.
If they were still 100% sealed, I left them that way. The Haldex part number is N-50011-H. I have a video covering the installation I can share if needed. The item "FMTV LMTV Air Dryer Upgrade Kit with Adapters NOS" is in sale since Monday, December 28, 2020. This item is in the category "eBay Motors\Parts & Accessories\Commercial Truck Parts\Other Commercial Truck Parts".The seller is "callmecolt" and is located in Floresville, Texas. This item can be shipped to United States.