Re: fuel gauge problem
Happy New Year to you too! When you order your sending unit, it should come with a new o-ring, but might ask so your not waiting again for parts. Replace the o-ring but use your original locking ring. The aftermarket rings are crap.
One other thing, did you check your ground wire on the back of the gas tank from the sending unit. (Axle side) It's held on by a small screw going to a bracket. Make sure you have a good and clean connection there.
69 Z/28. 302DZ, Autogear M22, Red w/black stripes.
69 Camaro, ZZ4, 700R4, 8.5 3:42 posi, X11
70 Nova SS 396, 4sp, 3:55 12 bolt