If you have a Toyota truck with a manual transmission with a considerable amount of miles on it, there's a good chance that you suffer from a common problem that these trucks have. Gears that pop out of gear while driving.
I have a 1996 Tacoma that I bought new. In the intervening time, I've put close to 220,000 miles on it. Around 4-5 years ago, 1st and second gear began popping out especially during warm-up. Fearing that the repair for the problem might be extremely costly, I put off the inevitable for several years.The problem grew worse until I found I was holding 3 of the 5 gears in place. After some research, I discovered that the problem is very common on these trucks and to my surprise, the fix was not only inexpensive ( $20) but easy.
In order to perform this repair, you will need a Philips head screw driver and some general purpose grease. The job takes 30 minutes. You will also need to order parts from a Toyota dealer or equivalent. The parts you need are: 1 shift lever seat and 1 shift lever cap. Bring your VIN number as there were slight variations.That's it! So here it goes.
Step 1: removing the shift lever to get access to shifter seat.
First, you'll need to get at the screws that hold the rubber boot cover to the transmission tunnel. They are underneath the carpet, so you'll need to pull the carpet back a bit to get at them.The rubber boot is held down with a stamped steel retainer with four screws. Be careful not to lose the screws under the carpet or you'll have to either remove ALL the carpet or find new screws.
The steel retainer was difficult to remove from under the carpet. I had success pulling it out corner first. Once that comes out, the rubber boot easily pops out. Pull up on the boot to get it out of the way so you can get at the shift lever retainer cap. There is a rubber dust cover over the top that easily pops off.