23tub
Member
I'm going through my tub trying to get it drivable. It's an older build and whoever worked on it last doesn't seem to have been too concerned about drivability. Anyway, I’m working my way to the back of the car and have started looking at the spring/shock situation. I like the old school look of the car and don’t have a welder, so I’m just trying to get what is already there done properly. 1 to 2 inches lower than present looks to be doable as far as tire clearance, etc is concerned.
The springs in the car don’t fit into the upper pockets because the upper ends are smaller ID than the bottom (as installed). Obviously, I need new springs but I have no idea what rate or length to use. It looks to me like coil over springs would work. Pocket ID is 4” and ID looks to be around 2 ½”. With weight on the wheels, the distance from the bottom spring perch to the seat of the top pocket is about 12” as best as I can determine. Looking at springs and shocks on Summit’s website, I see many different sizes. Questions:
1. How do I determine what length springs I should buy (gotta be chrome)? I’ve been looking at QA1, 12-110 or similar.
2. What spring rate? Do I need to find someone with a set of scales to determine how much weight is on each wheel? As it is now, it rides like a buckboard.
3. What extended/compressed length shocks? Should the extended length be just short of the spring length? Need eyelets on both ends. Was looking at Pro Shocks SM300.
Any and all help will be greatly appreciated.
Here are some photos:
The springs in the car don’t fit into the upper pockets because the upper ends are smaller ID than the bottom (as installed). Obviously, I need new springs but I have no idea what rate or length to use. It looks to me like coil over springs would work. Pocket ID is 4” and ID looks to be around 2 ½”. With weight on the wheels, the distance from the bottom spring perch to the seat of the top pocket is about 12” as best as I can determine. Looking at springs and shocks on Summit’s website, I see many different sizes. Questions:
1. How do I determine what length springs I should buy (gotta be chrome)? I’ve been looking at QA1, 12-110 or similar.
2. What spring rate? Do I need to find someone with a set of scales to determine how much weight is on each wheel? As it is now, it rides like a buckboard.
3. What extended/compressed length shocks? Should the extended length be just short of the spring length? Need eyelets on both ends. Was looking at Pro Shocks SM300.
Any and all help will be greatly appreciated.
Here are some photos:


