personally i would never have a rearwheel driven car again without an LSD diff. Apart from the fact that they are heaps of fun, 3.45's would be really easy to ark up and be a one wheel hero. Stuff being in the wet, and if you need to get anywhere in a hurry. I spose it bad enough anyways, but go the LSD
Most diffs with high ratios are LSD's, but thats from my shithouse knowledge