GM quick-ratio (12:1) gearbox conversions
Make your musclecar handle as well as it runs by converting your slow existing power gearbox to a fast quick-ratio 12:1 constant-ratio gearbox using new factory parts. With our conversion, no other changes to your hoses or coupler are necessary. Just remove the gearbox and ship it to me, with or without the pitman arm attached, and it will be returned to you ready to install in about 2 weeks. Exchange units available. Standard detailing and life time warranty $259.00, slightly more for "extreme" detailing, plus shipping.