i have a formula 350 5.7 tpi. has any one put a locker kit in the rear end to get rid of there limited slip. i think it is a 9.5 inch rear with 2.73 gears and it just dosent seem like i cant. put the power to the pavement. the cars has about 305hp with 450 pounds of tork. any ideas????

Let's go over your info again because I'm a little slow. You have an '89 Formula 350 with . I have a few questions. Do you know these numbers for a fact, where's your dyno sheet? I'd stick with a limited slip, you probably won't like a locker. How often do you go to the strip? What kind of tires are you using? What the condition of your suspension? What your technique for launching off the line? Answer a few or all of my questions and we can help you out. Your car more than likely has a 7.5" GM 10-Bolt with 2.73s or a 9-Bolt with 2.77s.

unless you have done some modding to that 350, it does NOT have 305 hp, and 450 ft-lbs tq.

Your problems aren't in the differential they are in your suspension. You don't want a lock for a street driven car. You need rear suspension mods to plant that power to the ground. What mods do you have?

Not unless it's a built, carbed motor with one hella custom cam

Thanks for the help.

Here's a fine example of Americas great education system. You should at least know how to spell before using a computer or posting on a message board for that matter.

Man, you guys are a little rough on him


If your car is street driven, you will not want or like a locker in the diff..... stick with the limited slip and as posted earlier, work on suspension mods.

All i can say is i agree. If your smart, no locker.