Steering box interchange???

mderoy340 said

Every a body I've owned the steering box bolts have been loose. Take them out, clean the bolts and holes with brake cleaner and install with red loctite, I think the bolt torque is 100 ft lbs. I just installed a 64 B body manual gear box large sector on a 70 A body and had to ream the outboard hole slightly to install a 1/2 bolt.

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I wasn't talking about the bolts being loose. My post was about the fact that early A bodies manual steering boxes use 7/16" bolts vs the 1/2" ones 67 and later use. I thought they were all the same. My question is- Is there a problem with just slightly enlarging the mounting holes in my early A manual steering box? Is everything else the same between manual steer boxes from early A's and later A's?? Will my 68 pitman arm be usable with an early A steering box? ETC...