I'd say the Moog stuff is significantly more expensive. The CARS kit is $200 with tie rod ends, ball joints, etc......I think all said and done I will have an additional $125 in the Moog stuff...maybe? I drive the car during the summer months regularly so the extra cost up front will be worth it...I just question the quality of the CARS pieces. I was hoping that somebody was running it so we would have some feedback but literally EVERYONE I have talked to has gone with Moog and/or Spicer Professional Grade parts.
A buddy of mine did the front end in his 68 Chevelle last fall with all Spicer parts (he's a ASE Tech) and he swears by the Spicer bits.....I just have never had a Moog piece fail me is all