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Can’t help you on that Tach...I only use the hmmwv specific Tach....

there are 5 wires to hook up first is key on power- spliced off the power feed on fuel gauge second is ground- connected to back of instrument gauges gound third is light-spliced off of instrument gauge light feed the next 2 wires are signal feed wires for the pulses,the tach drive in the...

Yes, brentwood...don’t drive it till it’s serviced.

Ahhh, a big boy, but yes, my driver now has a rig that can haul it. Does it run? I have my own m1078 here at the shop, have some various parts and do work on them. but I’m no expert by any stretch as my expertise is the HMMWV. but I have fixed everything that needed fixing on them and have all...

If you can, send me a pic of what you have to get a quote.

Just an FYI, I have a transport guy we use for all our pickups at Yermo/Barstow to the shop here in SF Bay Area.

I see no reason it would not work...I’m just not the mismatch type of guy, but if I didnt care, sure...

thats listed as 12.1 GVW ECV frame rail....that’s a great price!

What Greg said...use the Tach drive off the back of the motor, oil pressure gauge tap for power. the pic of the instructions you posted are of the cannon plug A-pillar mounted Tach, that’s not what you have.

Yes and No...regardless of motor on a 3 speed, it gets the same harness, you must use a 6.2 harness. The other engine harness for the 6.5 is with a 4 speed, the harness has TPS and such capabilities in the harness. So you would not use a 6.5 harness from an A2 truck on a v-belted 6.2 or 6.5.

The pan would have to be quite distorted, there are a lot of bolts,quite close together to make any distortion disappear once torqued. I use a lot of used pans that when they arrive, are distorted and a little hammering gets them looking ok...once torqued, no issues.

there are several flavors of frame rails, 7700 GVW, 10.3k, 12k, W/O Sheppard steering gear, W/newer steering gear. stick with a 7700 GVW rail. But to answer your question, all the holes are in the same spots, I just wouldn’t mix and match GVW rails.

Are you sure it’s the pan and not a pump seal?

I’ve installed so many of these pans I’ve lost count, none leak..never even had one leak. are you using OEM pan and gasket? You should NOT be using any RTV.

Don’t waste your time and money, if your looking to upgrade your HMMWV’s drivetrain, just buy a takeout Military turbo drive train.

I have 8 4L80 trucks....none of them leak from the pan. For some odd reason, even the new trucks don’t have a drain plug on the pans, I put them on all my trucks while doing the first trans filter. stock pan and stock reusable OEM gasket is what I use.

It’s easily 8hrs the only shop in SoCal would be Tustin Hummer...

These pumps in the auction trucks “M1123, M104X’s” get replaced more then half the time in the shop...the trucks sat for 9-10yrs and the pump is gummed up. I sell about 4 a month.

220 is the normal range....don’t trust the gauges to be exact, they aren’t. sounds like a normal running truck.

Check the flex plate for missing teeth, if it just try’s to engage at times and won’t, “not grinding” that’s a bad bendix or weak solenoid, not enough power to shoot the bendix out far enough to engage the flex plate. simplest solution is to just replace the starter...