yeah, what year? oh! ok
but actually regardless of year, all the cabs I've seen [assuming it's not a COE] are the same for any size, and your front sheet metal should fit, but there may be small things they made different to fit the larger frame and fenders, so you might have to adapt a bit

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics