I have the stock rims and a set of 17” HRE rims for my 74 Pantera. I liked the ride height of my car with the stock rims on it, but I always thought it could have sat a little lower.
When my 17” rims arrived I threw them on the car and was really disappointed at how the car looked. The rear of the car sat way too high, however, the front was fine. I pondered pulling the spacers out of my stock shocks but eventually came to the conclusion that I wanted the ability to adjust the ride height of my car to my specific liking. I ended up buying a new set of Koni’s with Hyperco springs and am glad that I did.
I can’t remember what my front 17" tire size on the car is – and it is down at my shop, but the rears are 315/35/17.