1. Car Year and Model: Transmission issues may differ based on the specific model and age of the 300zx.
2. Transmission Type: The 300zx comes with different transmission options such as manual and automatic. The repair costs for each type can vary.
3. Labor Rates: Labor costs can vary depending on the location of the repair shop and their hourly rates.
4. Replacement parts: If the transmission needs to be replaced or certain components repaired, the cost of parts and their availability will impact the overall cost.
5. Shop Reputation and Warranty: Choosing a reputable repair shop with a good track record and that offers a warranty or guarantee might affect the cost due to their level of experience and expertise.
6. Transmission Removal: In some cases, the transmission may need to be removed to inspect and diagnose the problem, which can increase labor costs.
7. Fluid and Filter: Replacing transmission fluid and filter might be part of the repair and can add to the overall cost.
Given the complexity of transmission repairs, it's important to consult with a professional mechanic or transmission shop to diagnose the specific issues and provide an accurate quote for the repair costs of a 300zx transmission.