mancini and classic are once again offering units,anyone tried one,if so are the good?

Dunno, but if you find a good source, PLEASE let us know.
There is a Company called Tanks INC. that sells a "meter match that works very well for the repop garbage sending units
METER MATCH LINKY

anymore, those meter-match items should be a must buy with any sending unit purchased these days, especially if you want any kind of accuracy.

I agree and have lost hundreds or hours trying to get the ho chi min units to read correctly at both ends. Rarely did I succeed.

.. .....Thanks that looks like the ticket, i need to buy a gauge anyway so ill letcha know how close it is

I swear by this mod that I learned about here on Moparts years ago. I'll never install a new sending unit without adding the wire first. I added the text to the picture.

Might be a solution
It does make sense even though the factory units did not have the extra wire. Did your units work correctly with the wire and no other changes ?

Very interesting and good to know.

I will definitely try that next time.

Thanks

4My original unit had a crusty ground clamp/strap from the sender outlet to the body mounted fuel line. I replaced it with a reproduction piece from Summit.
https://www.summitracing.com/parts/OER-MF290

Yes and No. They did, electrically. The float arm on one still needs to be bent. When the gauge reads empty I still have 1/8 of a tank of gas in it. I fixed an original A body sending unit for a friend that I videoed showing how bad the ground was before the wire and steady after the wire.

https://www.youtube.com/watch?v=gV_HMJa5maY

https://www.youtube.com/watch?v=x5m71Tes0n0

That's not all that bad. Kind of like a safety issue: i.e. margin for error.
Like the lights they have on modern cars, when 2 or glns left til empty.
And who cares if a full tank reads a smigg'in above/below the F mark.
It's not you're going to calculate your mpg per these gauges.