The coilovers that fit the older 69-73 510s are the same size as the ones you would use on your car,, the camber plates are the same as well.. BUT ,, the newer 510 has way smaller springs so you can drop spring farther down past tire even with wide wheels,,,( within reason of course ) so the need to have coilovers isn`t as great,,,,older 510 ones it will probably hit the tire no matter what size..
It`s pretty much the same as all 510s 610s b210s in that you just cut lower spring perch off and drop it down,, the clamp collar is just to keep the height you want and so there is no welding at all involved.. I never knew how to do it till i found out on this site and the picture whores on here that made understanding it easier than just reading...I bought the clamps off Ebay but you can get them other places..
...The clamps on my sons car (the one in this thread) have been on for a year and we have lowered them for summer and then raised them back up 1 3/4 inches to save tires for winter,, he drives this everyday so lots of miles means he was chewing through 14s pretty fast,, and the clamps have never been an issue.... i am posting a link to a thread with a good explaination and the pictures i used back in 2010 to figure out how to,,, when i did my 71 510...thread is from 2012 so you can see the info is still applicable as ever...
http://community.ratsun.net/topic/44740-510-front-strut-how-to-lower/
....If you still are scared ,, at somepoint make a point to come out to a meet and we would be more than happy to show you exactly what your looking at in the pictures. Hell we might even rip a tire off to show you if you need....well, that sounds kinda creepy.
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