differences between 911 & 914 boge's, trying to drop my front end a bit more Options

[bradtho]

I just finished a nice 4 corner suspension update. replaced all the rubber and switched to bilstein's. I wrapped it up with a 4 wheel alignment and a corner balance. They couldn't reach my desired front ride height due to hitting the internal bump stops on the billy's, so my front end is still riding 1 inch higher than the back.

I've been reading up on raising the spindles to get that extra inch. I found an old thread where Racer Chris said that 911 boge spindles are already .5 inch higher than 914 boge's. I also see threads saying you can generally get 18-19mm more out of boge's, but others that say you can't move them at all without re-sectioning the tube. As I look at my 914 boge's the taper makes it look like you couldn't move it all (w/o a lot of cutting and re-welding). Looking at pictures 911 boge's (mostly T struts) I don't see this taper, but could just be the picture. So...

1) confirmation that 911 boge's are actually .5 inch higher? If so, is this simply that the spindle is mounted higher or that the tube is different in other ways? I was expecting that I could take my new bilstein's with me if I swapped to 911 struts.

2) can you simply reweld 911 boge's to gain another 18-19mm?