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What the best place to get a new sending unit? I have heard that some people will send you a m151 sending unit, will that work without any problems?

If you get one with a hollow blow molded plastic float, replace the float with shellac coated cork or something before you install it. That blow molded thing won't last. It will hole itself and sink.

A mutt float will work OK.

DG

I just got one from John at Midwest Military. I also replaced my gauge at the same time. If the sending unit and the gauge are not made to work together, if you get a reading, it may not be at all correct. This set I got from John is working fine. The new senders have a rubber boot type plug in for the sender wire, so your truck wiring may need a different end installed.

You make a Douglas to Packard pigtail. Mine came with one.

What kind of float did the one you got from Midwest have? Plastic? Cork?

The MWM sending unit had a plastic float. It has only been in fuel, doing its thing, for a couple of weeks now. So far, no problems with it.

They are, as near as I can tell, all from the same source unless they are NOS. Newstar is the reproducer. The stuff seems 50-50. I've had two major problems with the sender I bought a few months ago. (Dont remember if it was MWM or VPW.) The float ripped it self open from whatever reason where it was held on the wire arm. And a month later it quit again. This time a cold solder joint (very poorly engineered) that required drilling thr housing open to access to repair.
Disappointing, but expected from hecho in India, China or Indonesia parts.

Thanks for the info guys! I will see what I can come up with!