1966 + 1976 Ford F-250 truck restoration and modification.

The “slick” will be a 1966 F-250 on the outside but sit on a 1976 F-250 4×4 (”HiBoy”) chassis.

Why?

• Better brakes : front disc, rear drum, 2 chamber master cylinder
• 4″ factory lift (that’s why they call them hi-boys!)
• Heavy duty leaf spring suspension
• Better rear-end gearing (4.10), 1966 was set up for towing with 4:35 gears
• Bonus 4wd (Dana 60HD rear, Dana44 open knuckle front)
• Sheet metal is a direct fit and the HiBoy and Slick both have FE engines

Modifications and upgrades:

• Conversion from C6 automatic to 4 speed manual NP435 transmission
• Upgrade of power steering to 1979 full power (1976 had “hydraulic assist” only)
• Replacement of full-time NP203 transfer case with part-time NP205 (divorced)
• Lots of engine mods (see the engine page…)
• Later model backup lights and wiring (not standard in ‘66)

Useful web sites:

• ford-trucks.com : An amazing amount of information in the forums
• MSN Slick 60’s : Great resource, primarily for ‘61-’66 trucks

Good books: