Hi All. I recently bought a new pitman arm for my '74 Challenger, unfortunately it doesn't fit. The splined shaft diameter is larger than the one on the steering box so it's way loose. I converted my car to manual steering many years ago. Not sure if the manual steering pitman arms have a smaller spline or I have an earlier model ('70 '71) steering box on the car. Anyone know whats the deal? TIA 
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
| 
