possibly a fuel regulator or bad valve
90 W Gear oil
YES.
there is a second oil pressure switch that shuts off the fuel pump if theres not enough oil pressure
Dextron-II
I think it would work but you might want to check before you try
Dextron II--ATF
Yes. In the early 90's, Chevy made a SS truck, with the 454 in it.
The maximum speed of a 1970 Chevrolet C-30 gasoline 6cyl, 140 HP truck is 90 miles per hour.
No it will not.
Most vehicles run at about 90 degrees celsius
Youre truck or blazer shold have new process 203 transfer case in which case you should youse youre manuals recommended gear oil most likely 90 wt
It will, but you want to make sure it's the same gear ratio, which would be determined by the RPO codes on the glove compartment door.