5x4.75 or 5x4 3/4 standard GM.
Big job!! get a manual on your car.
Under the dash board on the left hand (drivers) side.
Judd for the Defense - 1967 Fall of a Skylark The Appeal - Part 2 1-18 was released on: USA: 12 January 1968
Judd for the Defense - 1967 Fall of a Skylark The Trial - Part 1 1-17 was released on: USA: 5 January 1968
The frame from ANY GM A-body of the same body type (2-door, 4-door, etc) will bolt right in because they all use the same frames. So a frame from a Chevelle, Tempest/Lemans/GTO, Buick Skylark, or Cutlass will fit. Any frame from 1964-1967 will work. 1968 and later frames won't work because the wheelbase changed in 1968.
nobody really knows
factory rated at 390 hp gross
The same as you do in the 1968 Buick Wildcat
YES,All 1968-1972 gm a-body ( cutlass,chevelle,skylark,gto) can be interchanged.
Will have to be custom made by a tent and awning shop.
The manufacturer's service manual from 1968 says "Approx. 21 gals.", which matches what I see during fill-ups of my Riviera.
yes might have to change motor mounts