I'm doing some research on 150-4c and the e145. I've been able to find lots of info on it but I've run up short in one spot. I was under the impression that it uses an extension ring on the frame mounting flange. I've been trying to find how much length does it add from the frames flange to the extension flange?
I know on the outside edge of the extension ring is 1 inch wide. But the flange on the frame goes inside of the ring doesn't it?
Also, how is the ring secured to the basket frame? I'm assuming it has a couple screws doing the job. The surround is glued to the front of the extension ring like a normal driver?
I'd really appreciate any info anyone can help me with. Or point me in a direction of were I could find some. And maybe a picture of one taken apart.
Thanks,
Nick