* Parts: You'll need a complete manual transmission assembly (including bellhousing, clutch, flywheel, pressure plate, etc.), clutch pedal assembly, shifter, linkage, driveshaft (likely different length), and potentially other related components depending on the donor car's specifications. Sourcing these parts (new or used) significantly impacts the price. Used parts are cheaper but riskier. New parts can be very expensive.
* Labor: This is where the cost really explodes. A professional mechanic will charge many hours of labor to remove the automatic transmission, install the manual transmission, modify or replace the driveshaft, adjust the clutch, bleed the hydraulic system, wire any necessary components, and properly test and tune the vehicle. This is complex work requiring specialized knowledge. Expect several days of labor at a high hourly rate.
* Computer Programming/ECU Tuning: The car's computer may need adjustments to account for the manual transmission. This may require professional tuning or a standalone engine management system (which adds significant cost).
* Unexpected Issues: Older cars often present unforeseen problems during such a conversion. You might discover rusted or damaged parts, requiring additional repairs and expense.
Rough Estimate (Highly Variable):
A very optimistic, bare-bones estimate, assuming you find all used parts in excellent condition and do a significant portion of the labor yourself with mechanical experience, might be in the $2,000-$4,000 range. However, a realistic estimate for a professional shop performing the complete conversion could easily reach $6,000 - $10,000 or more.
It's crucial to get detailed quotes from several reputable mechanics specializing in manual transmission conversions *before* you begin. Be prepared for the higher end of the estimate to be more accurate. The complexity and potential for unforeseen issues make this a costly project. It's often more cost-effective to simply purchase a Mustang GT that already has a manual transmission.
