any tricks to adjustment of my 1970 steering column at the locking linkage. this is the four speed trans that has the locking linkage from the reverse gear arm to a z-bar (not the clutch z-bar) up to the steering column. it seems like the whole steering column should be rotated counter clockwise so i can make the adjusment at the z-bar, but i don't see how i can rotate it. there is an adjustment slot on the z-bar but i've allready got that as far up as i can get it.