FMX making clicking noise from stop

[James561]

When I accelerate from a stop, I hear a noise coming from under the car that sounds like keys rattling, or loose marbles banging together or something metallic. Also when I make a left turn, the transmission slips in the middle of the turn, then re-engages. It has been 'rebuilt' a couple times over the last 30 years. The transmission guy I used to use is long gone. Any thoughts on this appreciated. It has 254,000 miles on it.

 

[Sheriff41]

Is the fluid level good? Also, how many miles since the last fluid change?
Check your u-joints for the noise issue.

 

[72vert]

My FMX used to slip when it was cold out. I changed the fluid, added a bottle of TransX, and adjusted the band and the problem was gone. Also, a couple of weeks ago I heard a clicking noise on acceleration. The front u joint was bad, the needle bearings were missing.

 

[basstrix]

Initially, I was going to suggest checking u-joints, but with the rest of your post, it certainly seems you have transmission problems. Slippage during a turn makes me think the fluid level is really low...start with that and check the u-joints.