Differences in these c+c and p/u models?

[OnTheBio]

Hello.

The old man just picked up a 97 350 cab n chassis with a 460.

I'm looking for any differences with frame and axles that are known from my 97 350 7.3 p/u.

I've already found, surprisingly, he has a TTB front axle in his 350, is this normal?

Is the frame any wider, narrower, thicker?

Would a d60 from a 7.3 bolt under his frame the same as a 250 TTB swap?

Ours are both crew cabs. Suppose we tried, would my cab drop perfectly on his frame and mounts (and vice versa)?

Thanks everyone.

Welcome 2013!

[kramarj]

I do believe the only difference is the width of the frame after the cab. If memory serves me right the cnc is narrower than a regular truck. Might try searching for it, I know there was a thread a while back that talked about some of the differences.

[Fordman247365]

And the wheel base is different

[kramarj]

Originally Posted by Fordman247365

And the wheel base is different

On all trucks or just that you could get an F350 with like an 11' bed? Only reason I ask is because the utility box on one of our work trucks came off of a cnc I think, not 100% sure, but I know it wasn't any longer/ shorter.

[Fordman247365]

I think it depended on what the C&C truck was used for, we threw a 8' box on a c&c truck and the space between cab and box was 4-6"

[OnTheBio]

So you're saying the frame is different width in the front and back? ("Width of the frame after the cab")

I didn't think to check that.

Thanks.

Is the TTB because of the 460, and regardless of 250, or 350? Hmm.

[JSchuricht]

It's the frame behind the cab that is different. The rear axle is different too, it's narrower and the perches are in different spots. The D50 is not stock, someone swapped the D60 with their truck, shouldn't bee too difficult to swap back.

[Echo]

I just bought a cab&chassis truck as well. The main differences are the frame behind the cab on a c&c truck is 34" wide, the springs are 2.25" wide and the wheelbase is either 137" or 161".

A normal pickup the frame is 36" wide, the springs are 3" wide and the wheelbase is either 133" reg cab, 155"supercab, 168" crew cab

Rear axle for a c&c is about 4" narrower than a standard dually rear, and about 2" wider than a regular srw axle

[OnTheBio]

He swears up and down the TTB d50 is stock. According to visuals, there is no sign of replacement and is in fact well worn out. He states his manual says something about models with and without TTB.

So the front frame is the same but a regular dually axle would not bolt up to this?

Echo, thanks for the very informative post.

[Diesel_brad]

Echo hit the nail on the head

And that POS D50 TTB WAS swapped in there. ALL 4wd f350s from 86 to current got solid axles