To make this work, you'll need several components and potentially some custom fabrication or wiring:
1. Mechanical Speedometer Cable to Electronic Converter: This is the core component. It takes the mechanical speed signal from the 700R4's output shaft (via the speedometer cable) and converts it into an electronic signal compatible with your Camaro's system. Several companies make these converters, but you'll need to specify the correct output signal type (PWM) for your 1992 Camaro. Look for units explicitly designed for GM vehicles of that era. These often require you to figure out the correct number of pulses per mile to match the car's computer's expectations.
2. Speed Sensor Adaptor (Possibly): The converter may require a specific type of speed sensor to be mounted on the transmission, depending on the design. The original mechanical speedometer cable will not be used once this adaptor is used.
3. Wiring Harness: You'll likely need to fabricate or purchase a wiring harness to connect the converter to the car's existing speedometer wiring. This requires understanding the Camaro's wiring diagram.
4. Transmission Adaptor (Possibly): This may depend on the converter. Some converters might need a specific adaptor plate to mount the sensor to the transmission.
In short: This isn't a simple bolt-on project. You'll need mechanical and electrical skills, a good understanding of automotive electronics, and access to the correct components and wiring diagrams. Expect a fair amount of troubleshooting and custom work.
It would be significantly easier to source a 700R4 transmission from a similar-year Camaro that already has the electronic speedometer connection and associated sensor. This would avoid the significant conversion effort.
