Brake conversion. Lower control arm swap?

65 Dartman said

Lower control arms without sway bar tabs are the same for 63-76. The sway bar tabs that are located out by the lower ball joints are 65-72. Tabs located 4/5 inches away from the ball joint are 73-76 and are used with the 73-76 sway bar which does not fit the pre-73 K Frame. It appears you have the 65-72 style LCA’s which will work fine with the disc brake swap. I’m using the 73-76 disc conversion with 65-72 LCA’s with a sway bar

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Actually, that lower control arm started in 1962. The first sway bar LCA's started in 1965 and was the same in '66. The tabs were slightly different than the '67-72 version, but, they do interchange and will work with the factory bars in their respective years. If the OP is going to use an aftermarket sway bar with his '71 K-member in this swap, I would probably use a LCA without any tabs, unless you can find an aftermarket one that uses the factory tabs. Find the sway bar you wish to use and see what the manufacturer recommends or requires.