Transmission Additive?

[Cool Zr2]

This might be a stupid question but is there a transmission additive that can be put in with the fluid to help reduce slippage?

 

It slips a tiny bit after shifting gears, is there such a additive?

[silverado4800]

Ive heard lubegaurd red is best thing u can ever add to your transmission fluid, although i used some to try and stop shift shudder it did nothing. However i think my computer is the reason for the shudder. I bought the lubegaurd red at oriellys autoparts. It has alot of information on the box it comes in, read it and see what u think. There are 2 kinds, one for fords and one for gm, make sure and get the right one if u buy it.

[Cool Zr2]

I put in a bottle of lucus, I had to drain a little out so I didn't over fill, I hope it works.