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I've got 3 of them and I love them! NEVER will I be without at least ONE. All so far (since 3years) work reliabily and problem free. Just a few minor issues like finding (reasonable priced) O-ring seals for the side shift cylinder etc. But ANY big MV Fan/collector with several...

Hi NDT, Well it wasn't so "terrible" ...I removed the left side (wet) air tank to increase the available space. Got maybe 8-10 hrs work in it so far...but no good having a nice M920 that does not run!!!! So I continue to "march on"; ordered the parts and waiting for their arrival here in...

To keep you updated see my response to NDT below. Thanks again, Mark

Hi, Just to keep you updated on my Cat 7155 Tranny problem: Well I tried the airmotor oil....no luck, so I removed and disassembled the manifold control block plates and see my fotos and response to NDT. Hope to get it back together ok and WORKING! Mark

Hello NDT, Well after running some air motor oil through everything (without resolving the air leak problem) I finally removed the Xsmn Manifold block and seperated the plates and IMMEDIATELY saw the problem! A broken O-ring (p/n 5P8942, $5 on ebay) and a completely deteriorated red color...

Well, I suppose there is comfort knowing "Iam NOT alone" with this problem! Thanks for your input. So, replacing rather rebuilding the manifold is the preferable option?

Hi, thanks for your suggestion. I"ll get right on it....This seems like a very good idea and a logical method to see if it is possibly a stuck (ie. not closed poppet valve); or if the oil then allows the poppet to close--stopping or greatly reducing the air leak but with the added air tool oil...

Can anone help me with a problem I am having with leaking air (via the most forward--when mounted in the truck--air vent cap) on the rectangular shaped transmission shifter block, mounted on top of the 7155 Xsmn. Air is leaking profusely, immediately upon pushing in the (air supply) Xsmn...

Hi thanks for your response. I am using what the U.S. Army put in the truck (the truck only has 2,800 miles total since rebuild at Texas RMS in 2007....I assume it is OE-HDO-10 (also because it looks and feels like grade 10 oil)...although a placard on the inside driver door says to use SAE...

Thanks guys..I am doing the normal truck warm up ...leting it idle for sometimes half hour before it will slowly go into gear 6 or 7... then I drive it around in this gear only... for a couple of miles ...then as things start to warm up.... the transmission begins to slowly shift into more gears...

I am in need of some help with the installation of this winterization kit for the Cat 7155 transmission-- control block strip heater kit on my M920 & M916 Trucks. The kit came with 4 pages of diagrams--but only of the included items in the kit --NOT how to install it in the vehicle. I see...

I have a bad Hyd. Head on my M35A2 with the LDT-465-1C Turbo eng. I have an old serviceable Hydra. Head from a multi-fuel 5 Ton eng. (The LDS-465-1A). Will it work on the duce turbo eng. / Inj. Pump ? I assume it feeds more fuel to the engine (due to the higher HP of the 5 Ton eng) but it...