I got the L brackets welded in, repainted, and am starting on the sub-frame connectors. Before welding them in, I thought I should check the front sub-frame for squareness with the body. Based upon other issues I've had with the car, I assume the builder would have just bolted it on without squaring it. Measuring from the front alignment holes in the sub-frame to the rear holes in the body, I'm about 1/8" off on the front to back dimension from one side to the other. The diagonal measurement is about 3/8" different. I'm wondering how much difference is acceptable. I'm guessing these cars would not have been perfect off of the production line. I'm pretty happy with the hood to cowl and fender to hood fit. If I start moving he sub-frame around, I'm assuming it will cause issues with all the front end panel gaps.

Just looking for some advice from someone that's dealt with this before.