From what you describe, I think you're looking for Associated part number 9267, these are sold as a pair and do not have separate part numbers for left and right.
From associated's parts catalog: (Associated Parts Catalog
B3/B2/T3 Rear Suspension Mounts, 3° toe-in (per side) and 3° anti-squat
I think you'll find what you need on page 8 of the manual;
Hope this helps.