According to crutchfield.com my 1995 Chevy c/k 1500 extended cab pickup has 4"x6" speakers in the rear pillar but you can fit a 4" with a bracket of course
Remove the door panels
5"
4"x6" in dash and in rear
6
under the dash on the passenger side.
The recommended spark plug gap on a 1996 Chevy C1500 with a V8-305 engine is .060"
yes
Probly under the drivers door on the inside of the frame.
My 1996 is governed at 100 on the dot.
off the driver side exhuast manifold
When you will be sustaining a speed of over 45 mph
Will a 5.5 bolt pattern fit a 139 7