does anybody know if it is possible to replace the power brake booster on a 71 240 with one of a later year or model for increased brake power .it says in the jags that run 240z8 conv. book that a booster off of a 280 2+2 will work but the bolts dont line up and one would think that published material would be correct but i guess not .

you'd have to drill some new holes for it

Don't know about 260, 280 boosters but I can tell you for sure that a ZX booster will not fit an earlier Z.

I know a booster from a 260z will not bolt up. I have one in the garage that I picked from a pic-a-part lot.

The 280 2+2 and the ZX booster are the same diameter. The problem is the clutch master is in the way.