Transmission don't have 3rd or 4th (help)

[pitoturbo]

Guys, I need help!!! or some advise at this point, Just replace my radiator, now my transmission does not have 3rd or 4th gear, Checked all fluids, and TV Cable, pulled the pan down, and everything looks and seem fine, except when I took it for a spin, it doesn't hit 3rd or 4th gear, not even overdrive. AT this point I'm looking as if the problem is in internal. What do you think??
Thanks.

 

[MeanBuicks]

That's a truly odd coincidence.

I'm assuming that everything was fine prior to the radiator job?

Did you install a new radiator or a used/refurbished unit? Reason I ask is, it's possible that a used/refurbished radiator could have had debris lurking in the transmission cooler that can contaminate your transmission, sticking valves.

 

[pitoturbo]

we used my own tanks just recore, I noticed it wasn't shifting at all and then it started shifting, now the only thing that I don't have is the overdrive!!! What should I do???? remove the valve
body????