First check out all steering linkage, as previously noted. Tie rod ends, idler arm, drag link, and even ball joints and wheel bearings. After all that is repaired/replaced and is tight, check the steering box. If that's where the play is, try to adjust the pre load. That's all I had to do in my '66 and all was fine. Only if adjustment doesn't work should you go to the expense of a new box. At least, that's my opinion.
Rev
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'66 Coupe, 306, windage
tray, TRW flat tops, 351W
heads,pocket ported, 268
CC hydraulic cam, R tip
R's, Edelbrock Performer,
600 CFM Holley vac. secs.,
Mallory Unilite, coil, fuel
pump, Tri-Y headers, 2 1/2 "
custom pipes, 3 chamber
Flows, stock C-4, 3.25
Currie built 8" rear,
March under drive pulleys,
13.97 e.t., 100.1 mph
1/4 mi.
TCI 2400 stall converter
B&M Trans-pac shift kit
No improvement 1/4 mile
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