Our Mustang II springs come in rates from 275 thru 425 and in 13.5” free height/length. They will require cutting to the necessary length on the majority of applications. For the heavier vehicles such as full size pickup trucks and fat fendered cars the spring rate used will normally be in the 350-400 range. With Small Block and automatic a common rate is 375 to 400 and with the addition of A/C or a big block you will need to compensate for the additional weight and go to the next higher rate. Frame boxing and plating, accessories, and fuel tank size all play a part in selecting spring rate. When vehicle is sitting at ride height ready for test drive the lower control arms should be parallel with the ground or pointing down at a slight angle on the outer ends. The springs will settle some in the first couple of hundred miles so allowance for this should be made.
- Powder coated gloss black
- 13.5" spring length
- 3.50" inside diameter
- Use the spring chart below to select proper rate
Use the following chart to select your rate:
- 1200 lb. Front End Weight = 275 Rate Spring
- 1300 lb. Front End Weight = 300 Rate Spring
- 1400 lb. Front End Weight = 325 Rate Spring
- 1500 lb. Front End Weight = 350 Rate Spring
- 1600 lb. Front End Weight = 375 Rate Spring
- 1700 lb. Front End Weight = 400 Rate Spring
- 1800 lb. Front End Weight = 425 Rate Spring
I would purchase again
Summary: Springs fit perfectly and created a great ride.
Yes, I recommend this product.
51 Chevy Too Low
Summary: Replaced front coil springs on 1951 Chevy sedan. Original springs installed were too weak.
Yes, I recommend this product.
Mustang 2 front coil springs
Summary: Chose the 400lb coil springs for my 1935 Dodge Business coupe. Coils were 2" taller than the existing coils that were cut to short. They raised the front of the car 5 additional inches. I feel they were the right weight rating for my car because the car just began to raise off the jack stands when they fully compressed as I attached the spindle. I will probably cut some off the coil to lower the car after driving the vehicle some. When I shorten the coil length, I will use the 1 to 2 rule. Example 1" shorter gives 2" drop. I will most likely start with 1/2" shorter coil length to drop 1" and monitor the change. Better to cut it once or twice or three times and get the stance and a-arms in there correct working angle. Nice powder coating and quick shipping.
Yes, I recommend this product.
Yes I'd buy this product again
Summary: It arrived as described work perfectly
Yes, I recommend this product.
Yes I have ordered it 3 times use them alot
Summary: I use on 91 s10 with mustang 2 front end they do a great job
Yes, I recommend this product.
