I'm working on 1989 Georgie boy had problem getting it to come out of park and starting when i got it to start and switch gears they were all in reverse

Experiencing difficulties getting the vehicle out of park, starting the engine, and having all gears appear to be in reverse can be indicative of a few potential issues. Here are some common causes and steps you can take to diagnose and possibly resolve the problem:

1. Brake Light Switch: The most common cause of not being able to shift out of park is a faulty brake light switch. This switch is connected to the brake pedal and needs to be engaged to release the shift lock mechanism. If the brake light switch is malfunctioning or misaligned, it may prevent you from shifting out of park. Check if your brake lights are working when you press the brake pedal; if they are not, it's likely the brake light switch that needs replacement.
2. Transmission Linkage or Cable Issue: If the gear selector is not accurately engaging the transmission, it may cause the transmission to stay in reverse even if you've shifted to another gear. Inspect the transmission linkage or cable that connects the gear selector to the transmission to ensure it's properly adjusted and not damaged.
3. Transmission Shift Solenoid Problem: Modern vehicles use shift solenoids to control gear shifting in the transmission. A faulty shift solenoid could result in incorrect gear engagement. Have a mechanic perform a diagnostic scan to check for any transmission-related error codes.
4. Low Transmission Fluid Level: Low transmission fluid can lead to improper gear engagement and cause the transmission to stay in reverse. Check the transmission fluid level and condition. If it's low or shows signs of contamination, refill or replace the fluid as needed.
5. Ignition Switch or Neutral Safety Switch Issue: Problems with the ignition switch or the neutral safety switch can affect the starting process and may also impact the transmission's shifting behavior. A professional mechanic can test these components to determine if they are causing the issues.
6. Electrical Issues: Faulty wiring, connectors, or sensors in the transmission or related systems could contribute to the problems you're experiencing. Have an electrical system checkup to identify and address any potential electrical problems.