I have a 79 f100. I took the seal off, then later heard I should have marked the pinion yoke and the shaft and count the exposed threads before taking the nut off. What do I do now, I did none of this.

My 79 F100 custom shifts very hard into reverse. It has new u-joints, it sounds like its coming from the transmission. Any ideas?

I have a 79 F100 my turn signals work but the arrows on the dash dont. Also I have no back-up lights. Any suggestions? Bulbs are new.