DOES THE HDK SUSPENSION K-MEMBER HANDLE BETTER THAN A T-BAR SUSPENSION?

45? More like 50-60 now.

Lol, it's older than that right? First introduced in 1957, designed before that. So, minimum 68 and more like 70 years ago. The Forward look car set up was a little different, but not much. Same basic design. They do 73+ swaps for spindles and brakes, it's close enough.