Ok , you will lose cruise control with and auto on these gears, top speed not so much as i have gone 167 with limiter removed. i usually charge about 1100$ for the gears installed so this will help you to have an idea on cost. The SRM will be off about 300ish rpm. I have had the SRM shut down from time to time doing high speed runs , typically 120+ speed. I have not installed the gears on an auto yet, but i do know the carrier is different from the auto to manual. So i can to be sure the these gears will bolt to an auto carrier. to be sure you will need to find a manual diff from a 370 or later model 350. I have heard that the diff from the 350s will fit but the pinion flange is different, so that will have to be swapped, no big deal. The gears will make a HUGE difference !!
Also if you need the gears let me know as i can get them at a great price!!
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Best 1/4 mile 12.24 Best mph 114.5_______
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