I am ready to get my frame on my TR4A IRS sandblasted and can start to put my car back together after that. Moss sells strengtheing kits for both the differential supports and the front suspension lower A frame. I am aware of the weakness in the single bolt which holds the A frame on and intend to order the uprated two bolt connector (TR6 style I believe). I was wondering how neccessary it was to install these kits if the supports seem to be in good condition? Is this something recommended for average driving? No racing or autocrossing etc. I am planning on using uprated front springs. Any input on this would greatly be appreciated. Bruce