puttin a nv3500 in my 82 GMC stepside

[krow]

I have an 82 GMC stepside pickup that I'm putting an nv3500 5 speed trans in with a 350 4bolt out of an 78 3/4 ton truck,truck had a 305 with an 700r4 that work ok but not enough power. I have what I need to do the mockup, but I need a picture of the firewall from an 85 to 87 1 ton to see where the master cylinder goes through the firewall.I have to use the master cylinder from the 85 1 ton and the slave cylinder from the 90 chevy that the trans came from.Can anyone help with this problem.

[Captkaos]

Did you get the pedal from the 1985?  if so there is only one place it can go and that is to the right of the brake master cylinder..

[krow]

the pedals came out of a 85 1ton and I think I figured it out my truck has several holes that had wires running through them one is in the right place for the clutch master cylinder