The A4LD transmission is the most common failure on early explorers. It's very likely that your transmission is failing.
clutch plates could be welded to gather
Reverse is usually the first to go, followed by first gear. Time for a transmission rebuild.
if an automatic transmission is grinding in reverse it is probably an internal failure. The car will probably need a good mechanic who specializes in transmissions to look at it to be sure. I have seen some cars with a simple linkage problem do this...but its unlikely.
it needs a new transmission
Depends on the transmission. Many transmission bands are not adjustable.
Check your Automatic Transmission fluid level
On the Ford Explorer , on the end of the automatic transmission gear selector lever ( park , reverse etc ) there is a push button that allows you to turn off the OVERDRIVE feature if you wish
Put it into reverse when moving rapidly forward.
A grinding sound when shifting from drive to reverse in a 1998 Acura Integra could indicate several issues, primarily related to the transmission. It may suggest low transmission fluid, which can lead to inadequate lubrication and gear engagement. Alternatively, it could be a sign of worn or damaged components within the transmission, such as gears or synchronizers. It's advisable to have the vehicle inspected by a qualified mechanic to diagnose and address the problem properly.
Everything points to the transmission being rebuilt or replaced. The reverse band broke, came loose etc.
1998 ford explorer transmission reverse won't engage, acts like it is in neutral.
The A4LD transmission is the weakest part of the 91-94 explorer. It is likely that your transmission has failed.