Installing a T5 would require extensive fabrication and custom work, including:
* New transmission crossmember: The T5's mounting points will not align with the existing frame. A custom crossmember would need to be built or adapted.
* Driveshaft modification or replacement: The length and possibly the yoke style will be incompatible.
* Clutch linkage or hydraulics: The existing clutch system is designed for the original transmission. A new system will be needed, likely involving pedals, master cylinder, slave cylinder, and potentially a new bellhousing.
* Bellhousing: The T5 requires a specific bellhousing to mate to the engine, which is different from what the car originally used.
* Wiring harness modifications: The car's wiring harness will need adjustments to accommodate the new transmission's components like the backup lights and neutral safety switch.
* Shifter installation: The shifter location and linkage will need adaptation or modification.
While theoretically possible, it's a very involved project requiring significant mechanical skills, fabrication tools, and a considerable amount of time and money. It's far beyond a simple bolt-on swap. You'd likely be better off searching for a Monte Carlo that originally came with a manual transmission if you want that setup.
