Ross C. (Modern Motorsports),
Thank you for your help and support. I have checked the static (resting) angle of the control arm as your suggested.
QUOTE:
"What's your control arm angles at static rest, pointing down and out about 10-15 degrees for good suspension geometry? Or pointing horizontal or upward? If horizontal or even out and upward then shafts might be being compressed to limits in an angular position. Typical rear geometry on a Z sees rear suspension with control arms"
The control arms are pointing up at an estimated 15 degree angle. This is obviously causing the cv axles to bind when compressed and thus leading to failure. JT1 has pointed out that I could install stock 280 axles with the slip joints and although this could work, I believe I would be trading newer, stronger cv technology for a older, weaker setup. My thoughts are to install adjustable lower control arms and adjust them out in order to relieve the stress. I measured the available travel on a cv axle and it is approximately one inch. So I'm guessing that If I adjust the control arm out, and place the axle about in the center of it's available travel, I'll be in good shape. Is my reasoning sound? Any thoughts would be appreciated.