Gearbox additives? Thumbs down?

[Renaldo]

Guys, I'm assuming the consensus on gearbox additives, such as Moly Slip, is thumbs down?

It seems to me I read somewhere that these can even cause some harm, by making the internals too slippery for their own good.

Thoughts?

Ron

[Renaldo]

Gearbox seems fine actually. Shifts well. No obvious problems.

Only issue is occasional grinding when choosing reverse -- not a problem now, because I shift into second and then into reverse. No grinding whatesoever, when I do that.

Some gearheads have recommended a high-quality synthetic gear oil as just a better overall lubricant, even for these old gearboxes.

Good idea, do you think?

Ron

[Renaldo]

Mine is a 2500M with the TR6 gearbox...

[Renaldo]

Andy, no overdrive on my car.

Do you have any views on high-quality synthetic lubes for these gearboxes/

Ron