shock configuration for the Big Hit are usually as such..
8.75 x 2.75 = 8.1 travel
8.75 x 2.5 = 7.5 travel
Basically you can look at any shock mfg. that makes a shock in either of these configurations. However, some shocks may have fitment issues with some of the travel adjustments on the swing link.
Not sure what you were looking for, hope this helps.