5-speed trans grinds in 2nd when hot

[bmcquist]

I have a '93 XLT with a 5sp manual and around 120,000 miles on it. It runs great but it periodically has a hard time going into 2nd, but for the most part shifts fine. However, if I take it on the highway for more than 10-15 miles, once I back on the surface streets it grinds going into 2nd gear (accelerating or decelerating) until it sits for 30+ minutes and then it shifts fine again. Shifting into 1, 3, 4 or 5 works fine, hot or cold. I run Mobil1 trans fluid but it hasn't been changed in about 18 months and the clutch is 2 years old with about 20,000 miles on it.
Any suggestions as to what the 2nd gear grinding is about?
Thank you for your help.

 

[RealXP8]

Have it rebuilt now, before you do more damage. It's probably the syncros or blocking rings. Trust me it will get worse when it gets real hot for the summer.

 

[mrboyle]

I agree, it sounds like you are starting to lose the syncro.

 

[bmcquist]

Well, I suppose it could be worse. Has anybody cracked into one and replaced the synchros themselves, or is it a job for the pros?

 

[RealXP8]

I pulled my 5 speed apart on my mustang, what a mistake that was. Pull the trans yourself, and take it somewhere to be repaired. Should save you a couple of bucks on the job. It's not worth the trouble or the aggravation. Especially if it's your daily driver.

 

[bmcquist]

Thanks for the input. Since it is my daily driver I think I will take your advice and drop it myself and have someone else fix it.