Call any other spring source or hot rod shop and they might have 4 Mustang II different coil springs.
And 4 different springs would be fine if all cars were built the same and if everyone wanted their car to ride the same and sit at the same height.
But knowning that not all cars are the same and everyone has their own ideas on how their vehicle should sit, ride and handle 4 springs are just not enough. So we have developed 23 different Mustang II coil springs.
With a selection of 23 springs you are able to get your ride just the way you like it.
With umpteen years of doing this stuff and a some help from our colleagues in the hot rod building business and some of you fine people, we have created a chart giving our recommendations of what spring to start with.
We have found these recommended springs work over 95% of the time and if you happen to be one of the other 5%, don't worry. If the 1st set ain't right just let us know why and we will send out another set. Just pay for the 1st set and all shipping, the replacements are free. (of course the springs can not be damaged, repainted, chromed or altered in any way)
These are the terms that you will see on the chart below. They are important, so here is what they mean -
Rate - is the amount of weight required to deflect the spring 1 Inch. The higher the Rate, the stiffer the ride.
Free Height - is how tall the spring is out of the vehicle.
Loaded Height - is how tall the spring is when it is supporting weight.
The weights shown are for reference only.
Download the chart shown below for easy printing.
Go here for a partial listing of the vehicles we make products for. Partial is the key word here, we will probably never get everything listed on the web.
Go here to download our Application Guides and Literature.
Technical Information is available here.
We also offer a full line of Attaching Hardware, Edelbrock Shocks and QA1 Shocks.
Standard Applications(To Order Click on Part Number) |
EATON Part No. |
Spring Rate |
Free Height |
Small Block |
|||
| 33 - 34 Fords and 33 - 35 Chevys | 317 | 14 | |
| 35 - 48 Fat Fendered Cars | 352 | 13 7/16 | |
| 50's Cars and Pickups | 367 | 13 3/4 | |
| Very heavy engines in 50's & 60's Pickups (cut 1 coil for 460, 454 & Hemis) |
383 | 14 15/16 | |
Big Block |
|||
| 33 - 34 Fords and 33 - 35 Chevys | 352 | 13 7/16 | |
| 35 - 48 Fat Fendered Cars | 367 | 13 3/4 | |
| 50's Cars and Pickups | 383 | 14 15/16 | |
EATON Part No. |
Spring Rate |
Free Height |
Loaded Height | ||
1,500 Lb. |
1,750 Lb. |
2,000 Lb. | |||
| 308 | 14 1/8 |
11 3/4 |
11 3/8 |
10 15/16 | |
| 309 | 14 7/16 |
12 |
11 5/8 |
11 1/8 | |
| 309 | 14 3/4 |
12 1/4 |
11 15/16 |
11 1/2 | |
| 315 | 13 5/8 |
11 1/4 |
10 7/8 |
10 1/2 | |
| 316 | 13 11/16 |
11 5/16 |
10 15/16 |
10 9/16 | |
| 317 | 14 |
11 9/16 |
11 1/8 |
10 3/4 | |
| 321 | 11 1/4 |
8 15/16 |
8 9/16 |
8 1/8 | |
| 324 | 13 7/16 |
11 1/8 |
10 3/4 |
10 3/8 | |
| 332 | 13 |
10 13/16 |
10 7/16 |
10 | |
| 351 | 12 3/4 |
10 9/16 |
10 1/4 |
9 7/8 | |
| 352 | 13 7/16 |
11 1/4 |
10 15/16 |
10 9/16 | |
| 367 | 13 3/4 |
11 3/8 |
11 3/8 |
11 | |
| 383 | 14 15/16 |
12 15/16 |
12 5/8 |
12 1/4 | |
| 383 | 15 1/8 |
13 1/8 |
12 7/8 |
12 1/2 | |
| 383 | 14 3/4 |
12 3/4 |
12 7/16 |
12 1/8 | |
| 384 | 13 3/4 |
11 3/4 |
11 7/16 |
11 1/8 | |
| 386 | 12 5/8 |
10 5/8 |
10 3/8 |
10 | |
| 414 | 15 |
13 3/16 |
12 7/8 |
12 9/16 | |
| 415 | 15 1/4 |
13 3/8 |
13 1/16 |
12 3/4 | |
| 415 | 15 3/8 |
13 9/16 |
13 1/4 |
13 | |
| 417 | 15 13/16 |
14 1/16 |
13 3/4 |
13 7/16 | |
| 418 | 16 |
14 1/4 |
13 15/16 |
13 5/8 | |
| 461 | 15 1/8 |
13 1/2 |
13 1/4 |
13 | |