

After shifting into reverse and backing into my garage I realized the shifter would not shift into any other gears. Question: I have a 1968 Ford Mustang with a 4-speed toploader transmission. You may have problems with a worn synchronizer or shift fork assembly or other internal components.Also, you may be dealing with a worn-out pilot bearing (the gap causes the input shaft to vibrate, which causes the shift forks or synchronizers to move).If the ball slips out of the notch, the transmission will jump out of gear. In an internal shift linkage, the spring is part of the spring-loaded ball that locks the transmission into gear (detent). You may be dealing with a weak or broken spring in the shift rail.

But in most cases, you'll have to rebuild or replace that part of the assembly. An external linkage can wear out or become loose and maladjusted, causing the transmission to jump out of gear. A stretched linkage can be caused by a damaged engine or transmission mount. A common problem is a worn out, stretched, or maladjusted shift linkage.Once again, there could be other several causes for this problem, besides a worn-out transmission: A worn or damaged input shaft bearing, if your transmission makes noises only in neutral (sometimes a bumping sound).Sources inside the transmission that can cause noise: But if you hear noises in a specific gear, that gear's teeth or synchronizer may be worn or damaged. Insufficient or contaminated oil may cause the transmission to become noisy in some or all of the gears.

If a noisy transmission does have enough oil, the lubricant may be contaminated with metal shavings or particles. The most common cause of a noisy transmission is insufficient oil, causing the gears or internal assembly to hum or whir. Odd Noises That May Come From the Transmission Photo courtesy of Nutzdatenbegleiter on Wikimedia 1. Your noise may not be coming from the transmission a bad CV joint can produce noises when you accelerate or make a turn.
