No 5th Gear / Overdrive Manual

About all you can do at this point is change the oil in the gear box and have your shift linkage checked and adjusted. The grind is internal, and the transmission will need to be removed to be repaired. Most likely it's worn synchronizers.

possible selector linkage adjustment , loose or shifted

Sounds like you need a clutch and its possible you have a problem with the shift rail engaging.

gear linkage worn joints.

try tranny oil change then put step up grade oil toyota recommend 75w/90 try 80w/90 + add lucas gear oil 80/90,guaranty will work.

check shift fork adjustment. make sure you bleed the slave cylinder.also check shift cable adjustment.

hi my name is nathan .......now...... what it sounds like is #1 (I have to hold it in place til I get to second gear) that can be that your shift linkage is worn or out of adjustment,pilot bushing is Badly worn,shift fork,lever and or shaft is bent or worn,or your bell housing is misaligned or just loose...i have a few more ideas on why it is jumping out but those are the main ones now about your whining gear noise#2( The whining sound starts low pitched in each gear then gets higher pitched as the rev's increase) you may have worn gears maybe or it could be just that your transmission lubricant is incorrect or inadequate.

Sounds like you may have bent a shift fork or your cluster gear has some missing teeth on it now. I would venture to say that is it a bent shift fork. This will require the transmission be removed to gain access to inspect and repair.

5th gear is gone, it'll be cheaper to find a good second hand one with a waranty than to get your one fixed sorry to say. The inside of gearboxes are only a place for gearbox specialists and they arent cheap unless you know someone.

how high does it rev before it goes into 5th gear? if it's not too high, could just be a long gear, and completely normal, or otherwise you may have a bur on your shift valve causing it to not want to shift normally. for that case you have to pull the trans and grind the bur off, or if it's under warranty fight with the dealership until they agree to.