I am sure the box will but with uncertainity of the pitman arm! ( I don't have my book in front of me.) The booster will be different but '67-'70 full size Pontiac and Chevy will be all the same.
I added the dual master cylinder in lieu of the single one on my '66 Chief along with the matching brake booster. The single didn't cut it for me!!
-- Edited by 67Poncho on Wednesday 2nd of June 2010 07:01:40 PM
I was pretty sure that 67Poncho has it 100% but wanted to check.
The pitman is unique for each of these pairs 65-66 67-68 69-70
That is how I remembered it too when I put 68 4 piston disc brakes on my 66 Grande Parisienne. I used the entire steering linkage from the 68 along with everything between the ball joints to convert to disc. I also changed over the entire master and booster from the 68 as well.
Unless I'm wrong.............!!! After all this was in 1978 approximately!
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
steering boxes are basically the same, you must use the correct year pitman arm as carl states, though. and manual and pwr arms will not interchange, the manual box has a smaller diameter shaft. '69-'70 boxes are prefered, they have a slighter better ratio, 3 turns to the '65-'68 box 3.5 turns.
