If you do a lot of highway driving, you will not like them. You will be turning 3k rpms, it will be really noisy, and gas mileage will suck. 3.73's a good if you have an overdrive trans. 3.23 work pretty well with a 3-speed. If you car is driven mosly in town, 3.73's wouldn't be that bad. If your car staying in town most of its life, and the monte rear is a posi, I would swap the monte rear in. If you do a lot of interstate driving, I would swap in the monte rear, and an overdrive trans. Thats just me though.