[gringoloco]

Also yanked the fuel tank in an attempt to get the factory fuel gauge working properly. Turns out, I have a vintage Northwest Metal Products 37 gallon tank. NWMP is a subsidiary of Southern California RV Products, where this tank was purchased. This thing was installed in 1980 and still looks great inside! Cool to see a product that is still being made for these Blazers over 30 years later.

I stuck a new 0-90 ohm sender in from Tanks, Inc, which was in a Classic Instruments box and looked eerily similar to a VDO unit... It's an adjustable piece, so I set it up for my tank's depth and bolted 'er in. The tank got a touch-up coat of rubberized undercoating and a new fuel filter and I stuck it back in.

Deleted the old fuel gauge and hooked the sender back to the fuse box. The dash gauge now works, at least, but is reading just over 1/8 tank at 42 ohms from the sender (just under half full). I need to dig in and see if I have a bad gauge. May be why the PO bypassed it in the first place...