I just measured my all black delrin two piece "One Piece" clamp, and the height is 1 13/32 inches. I stood it side-by-side with the stainless + delrin clamp and indeed the all black delrin was shorter, as the measurements would suggest.
This implies that my all black delrin clamp is different from yours. (Have you double checked your measurement with another measuring device? Sorry, I couldn't help asking.) The good news is that if your 1.766 inch tall clamp is just slightly too tall, there should be a good selection of VPI clamps that could fit OK. You could even get a short all black delrin like mine, and it might work out.
My all black delrin came with my VPI HW 19 Mark III, which I bought new in 1997. I vaguely recall that there was a choice of VPI dustcovers, a short and a tall, and I got the short one because the Mark III platter wasn't as thick as the Mark IV platter. I don't know if you are using a VPI dustcover, but perhaps the better solution would be to get a taller dustcover. (Obviously, you might prefer to avoid this expense.) If no one has the right VPI dustcover for this discontinued turntable line, Gingko Audio offers a selection of dustcovers and will do custom work. I've had good experiences with them, but they aren't real cheap either.
This implies that my all black delrin clamp is different from yours. (Have you double checked your measurement with another measuring device? Sorry, I couldn't help asking.) The good news is that if your 1.766 inch tall clamp is just slightly too tall, there should be a good selection of VPI clamps that could fit OK. You could even get a short all black delrin like mine, and it might work out.
My all black delrin came with my VPI HW 19 Mark III, which I bought new in 1997. I vaguely recall that there was a choice of VPI dustcovers, a short and a tall, and I got the short one because the Mark III platter wasn't as thick as the Mark IV platter. I don't know if you are using a VPI dustcover, but perhaps the better solution would be to get a taller dustcover. (Obviously, you might prefer to avoid this expense.) If no one has the right VPI dustcover for this discontinued turntable line, Gingko Audio offers a selection of dustcovers and will do custom work. I've had good experiences with them, but they aren't real cheap either.