Whenever you change the geometry of the driveline, you run the risk of those componenet going bad quicker. And even though good parts were used, there is still the chance of parts going bad. You must make sure the CV shafts are not binding and are in as straight a line as possible.
The same thing happens in trucks and SUV's when they use the cheap lift kits(blocks on the springs), the shops or the dealers never "clock" the rear axle to get the driveshaft back in line, end result, the u-joint snap like crazy. Especially when there is a load placed upon them during acceleration or towing.
Same thing happens on cars, if the CV shaft is not in a generally straight line, the stress of accelration, even minor, can cause the parts to fail much quicker.
sig pic courtesy of GBALT05