i personally had the lsd with the 4.3 rear end, im getting up to speed very quickly and probley running around 2800 at 60 mph in 5th which is a fairly high rpms dor that speed, but for the few times im on the highway i like the ablity to accelerate quickly and driving around city streets in 5th and not worrying about stalling the car. i still get good gas miliage cause its an manual (for a supra)