Shifting hard. Doesn't shift into reverse or past 1st gear. What's wrong?

With the engine off see if the shift between 1st to 2nd feel,s free if not it could be the cable check the clutch is disengageing all the way it should go into reverse without crunching,other then that it could be a synchro ring worn check that the gearbox has the right oil in it.

Could be, or the clutch disc. First gear and reverse do not have syncro gears, the others do. So the transmission and engine have to be "disconnected" to allow shifting into first and reverse.

Really !!!

You have no idea after all those issues that the
transmission is completely worn out?

If it had any chance of repair, you rode it to it's
grave knowing you could hear & feel things

if you have a hydraulically assisted clutch, check the reservoir. it's located on the firewall in the vicinity of the brake vacuum booster. if it's low/empty, fill it. you may have air in the system which will require bleeding. what is the mileage? you may be due for a clutch. if you google, "hard shifting manual trans" you will gain more insight on the matter.

hi mate , sounds like the SPIGOT bearing its a little bearing that allows the gearbox to be at a different seed than the engine flywheel and if this is in bad condition it will take the gearbox front shaft to a higher speed than comfortable for gearshift , in the meantime when you go for 1st or reverse gear just engage a gear like 4th without taking your foot off the clutch and then go for 1st or reverse, this will stop the gearbox spining long enough for a smooth shif, oNLY USE THIS METHOD WHILE STaTIONARY and see a professional when you get time.

stop shifting so hard. your reverse gear is the same exact gear as your first, so if you shift hard and grind that gear a little then reverse will be harder to get into. you probably need your transmission rebuilt the harder your engine has to work the more its going to bogg down

Happened to mine ,, Simple solution : Take it to transmission maintenance,, they clean up the mesh and fresh fluid,, will shift properly, will run like new.

SHift solenoid pressure switch

STOP Downshifting!
STOP Forcing gear change, watch the Engine RPMs and shift accordingly, HOMBRE's are as good as the operator's. Hombre's have dash shift indicators which illuminate when it's time to 'shift' and not before, This has nothing to do with gear oil either. If you've drained it, you best fill it immediately and make sure it's ample level. The heat these gears sustain in is inceredible, cooling lubricant is essential. Here's a tip, while engine is OFF, ignition key is engaged, dash is illuminated, depress clutch peddle, keep it depressed and walk through all gears with gear shift, shifting should be smooth and unpeded, including reverse. If resistance is experienced at one or more gears, gear alignment is off as a result of inproper gear shifting while driving. Continue to drive vehicle just shift slower until clutch needs replacement then do an entire drive shaft upgrade. It worth it, it's great truck.

The blinking overdrive button is telling u that a serious fault has occurred in the electronic controls or a mechanical fault such as excess slippage is occurring.