7.25 axle splines

Thanks for the feedback. the brake lines and everything else fits. I planned to just remove the plugged axles of the 4 inch ones and replace them with the larger 4.5 inch ones. The large bolt circle is currently installed in the car. I currently have the 4.5 inch rims on it. Basically I want to make one out of 2 axes. Anchor plates should fit since the other axle is also 7.25 inches. best regards