Well, after checking under the 51, it appears my concerns on the 5th gear tailshaft bulge were unfounded. The mechanical speedo NWC and electric speedo tailshafts appear to be the same (speedometer gear difference of course).


RonR


1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1964 CJ5