[LT4XTREME]

My Dad has ran many of these 67-72 C50 and C60 trucks over the years. We also had a 57 265 V8, a 63 C60 250 I6, 73 C60 427. Now he runs a 83 C50 350 V8 and a International S1700. The C40 and C50 has smaller front fender flares then the C60 C70 so the fender extension running down to the running board is wider to match the fender keep this in mind when looking for parts. Most of these truck parts are still available from GM heavy truck dealer (they can look them up) as many of the parts are used up into 80's posibly the 90's. If you look at a pickup doors front clower corner inside you will see a line this is where the pickup door needs trimmed (notched out) to fit the C40-up large front fenders. The cab corners are the same the rocker panels need the same notch to clear the fenders. All C40-up has small back glass like a 67 pick up. The shape of the firewall is a little different on the C40-up cabs since the engine is located lower and farther back on them. Some school buses used the 68-72 front nose clip well into the 80's. We used a 84 C60 rear axle in the 63 C60 dad had and it bolted right in no problem. most all brake parts we need was available at Napa.

I always wanted to build a 4-door C60 427 using the big back window pickup cab as a donor with AC and CST trim and chrome the grill/headlight panels and bumper. I'll keep dreaming!! any other question about thes trucks let me know. Jason