ok, so i think i found the right stuff to replace the front diff mount, rear diff mounts, and u-joints from mazdatrix. i'm just looking for feedback on if these prices are good, if i've even got the right parts, or if someone offers the same product somewhere else for cheaper

2651-60..........U-JOINT NON OEM.......FITS ALL W/PN 2691-....$ 13.84 (2)
28-6800-FCY1.....MOUNT DIFF FRONT......86-92 COMPETITION......$ 99.06
R-RDIFFMNT-FC....RACE MOUNT UHMW.......86-92 DIFF REAR-PAIR...$ 68.00