what would you guys recommend for a 26k transmission?

[SLde_Show_Enthusiast]

hey, I recently bought a 26k motor/transmission and would like to know what kind of transmission fluide you guys think is good for a low mileage transmission?I did search and I didn't get any results for transmission fluid for a low mileage transmission.the fsm i have says to use gl-4, but correct me if i'm wrong, isn't that 75w90?also, I'm thinking about using penzoil syncromesh but i'm open to anyone's opinions about other brands/wieghts...

thanks, oh yea, i can't get redline because i don't have enough time to order the stuff, I have to buy the stuff either today or tomorrow because the motor/transmission is going in tomorrow so that i can be ready and get on the road to houston for formular d.

Thanks in advance

[SLde_Show_Enthusiast]

I just got home and I stopped by napa to get royal purple 75w90 transmission fluid cuz its okay for both gl-4 and gl-5 vehicles...also i was busting my asss trying to find a place that sells gl-4, but there weren't any

I'm also gonna use valvoline vr1 racing oil 20w50,....i wanted 10w30 but nobody had them either!

let me know wut u guys think...