Toyota: 92 Toyota pick-up transmission, clutch pressure plate, gear ratios

Question
I have a 92 Toyota pick-up 2wd. It has 186,000 miles and I purchased it new. I had a clutch,pressure plate and throw out bearing replaced in it at 176,000 miles. I have been hearing a small winding noise that comes and goes in the transmission for some time.Even before the 176,000 mile repairs were made. I have also noticed a small fluid leak around the top plate (the plate with the 4 bolts below the shifter). Now I can't get the transmission to shift into 3rd. or 4th. gear. All other gears are fine.  

Answer
Hello,

I think the 3rd and 4th gear ratios (the pinions I think they're called, sorry I'm not sure about the word in english) are gone! or maybe the synchronizers, too...
You must have your gearbox opened and checked.

Hope this helps!

regards,
Jack