D19 gas clutch issue

last night i went ahead and split my D19 to install freshly machined flywheel and pressure plate along with new 11" disc. I installed it on the tractor aligned it and torqued down the pressure plate and measured the fingers and they were all within spec at 1-3/16" so i rolled the tractor back together and tried the pedal and it barely reaches the clutch fingers. Now i should mention this is a diesel to gas conversion i had bought last year. iam swapping out the diesel flywheel to the gas one so the gas starter will work. Im just wondering if the throw out bearing assembly is entirely different too? any help is greatly appreciated

I have had to shim between flywheel and pressure plate to get fingers right.     MACK

A .030" shim at each pressure plate mounting bolt will change the finger tip about .090" if I remember right. The D-17 and D-19 had a pretty limited stroke on the throwout bearing. When the 190's came out, they changed the design and had at least 50% more adjustment stroke so this wouldn't be an issue. You want to wind up with the clutch disengaging very near the bottom of the clutch pedal stroke. This will then allow many more years of service life before you have to split it again for a clutch. if you only have 2 inches of pedal free-play when you get done with a new clutch, it won't be very long and that 2 inches is GONE and you're splitting it again because the clutch is slipping or the throwout brg has failed from spinning all the time.