I have a problem with the Rt. blinker mode on '66 Chev shorty.... When the right signal is on and flashing, the left is too. Left signal does not affect right and both fronts operate normally. Ck'd w/ VOM at rear bumper area plug,,,, Problem is ahead of that.. right now have no st wheel puller, but suspect elect contact bridging under st wheel.... any other ideas? Also will a stock 350 temp sender operate the dash gauge correctly on this pu? orig. engine was a 283 I believe...'Thanks!