The 55 2nd series I own has a custom factory built 350/430hp engine and I'm changing manual tranny from a 10 spline Muncie 4speed to a 26 spline GM Tremec TKO 600 5speed to satisfy my drivetrain setup for my application. I assembled engine and drivetrain while I was working on frame only. Now that truck has been completed for 2 years,access to the clutch is not easy now! What is the best and/or easiest way to change these parts? THANKS
