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#917230
$147.99
/pair
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74-78 Mustang II, 74-80 Pinto, 75-80 Bobcat, Steel
| MFG. Part # | Select Rate |
| Position | Front |
| Spring Rate | Select Rate |
| Free Height | 13.5" |
| Inside Diameter | 3.5" |
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855.313.9176Quick and Easy Returns
Return PolicyOur 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.
Use the following chart to select your rate:
CA WARNING:
Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov
| KEY SPECS | |
|---|---|
| MFG. Part # | Select Rate to see |
| Brand | Speedway Motors |
| Position | Front |
| Spring Rate | Select Rate to see |
| Free Height | 13.5" |
| Inside Diameter | 3.5" |
| Material Type | Steel |
| Finish | Powder Coated |
| Color | Black |
| Diameter Big End | 4.6" |
| Diameter Small End | 4.6" |
| Spring Rate Range | Select Rate to see |
| GENERAL | |
| Sold in Quantity | Pair |
| Progressive Rate Spring | No |
| Coil Spring End (A) | Square |
| Coil Spring End (B) | Pigtail |
| Wire Diameter | Select Rate to see |
4.9
86 Reviews
The product, Mustang II suspension springs, have high-quality material and practicality. They are versatile for various vehicle models, like '53 Ford, '55 Studebaker, and '47 Ford and provide excellent ride quality. Users have complimented that they can customize the product according to their needs by trimming the spring, which improves lower control arm orientation and ride height. The springs offer a solution for front-end height issues, enhancing the appearance and driving experience. The product's superior features also include durability, safety, and affordability in contrast to competitors. Some customers wished they had chosen a different spring rate for a softer ride but overall, most users would repurchase and recommend them for their superior use and performance.
4.9
86 reviews
5
79
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Most Liked Positive Review
5.0
Mustang 2 front coil springs
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.
Most Liked Negative Review
2.0
I would buy this product agin if needed
these springs gave me the perfect ride height ,but you must weight your car first [get your scales here at speedway] get correct weight springs !
Filter by Ratings
Good product
5.0
14 days ago
Lolo
Clarkston, wa
Verified
Perfect, was exactly what I was looking for
Would Recommend
I would buy this again.
5.0
14 days ago
Dave G
Saint James City,Florida
Verified
I ordered too heavy of a spring and was able to exchange without any problem.
Would Recommend
I would buy these again
5.0
3 months ago
Block
Illinois
Verified
They were exactly what they said. They were good quality.
Would Recommend
I would buy again
5.0
5 months ago
Rat rod
Omaha ne
Verified
Worked great and rides awesome
Would Recommend
I would buy again
5.0
5 months ago
Rat rod
Omaha ne
Verified
Worked perfect
Would Recommend
I would purchase again
5.0
7 months ago
Jes
Houston, Tx
Verified
Springs fit perfectly and created a great ride.
Would Recommend
51 Chevy Too Low
5.0
a year ago
Leroy
Tallassee, AL
Verified
Replaced front coil springs on 1951 Chevy sedan. Original springs installed were too weak.
Would Recommend
Mustang 2 front coil springs
5.0
a year ago
Asphalt Thrasher
Caldwell, Idaho
Verified
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.
Would Recommend
Yes I'd buy this product again
5.0
a year ago
Chevy truck
Indiana PA
Verified
It arrived as described work perfectly
Would Recommend
Yes I have ordered it 3 times use them alot
5.0
a year ago
Kirk
Sharpsburg ky
Verified
I use on 91 s10 with mustang 2 front end they do a great job
Would Recommend
Showing 10 of 86 reviews
37 Questions • 13 Answers
I got a set of mustang ii springs with a 53 Chevy car frame that I bought. I think they are Speedway springs. Are there any marking on the springs to determine the spring rate?
by Nick
• 2 years ago
1 answer
View Answer
I have a 1950 Chevy Coupe with a 2000 LS1 Mustang II 2" drop spindles and AC. What spring rate do you recommend?
by Hot Rod J
• 6 years ago
1 answer
View Answer
Hi, this question is regarding a 1954 Chevy 3100 with a basically stock iron block/heads 350ci mated to a 350 turbo-automatic. No AC, or power steering. I've installed a Heidts weld- in kit and suspension hardware from a donor Pinto to include coils, arms, and manual rack. Otherwise frame is basically stock. Ride with this setup is good, but ride height is pretty low. I'd like to increase ride height about an inch. My question is what spring rate would you recommend? Thanks in advance!
by Paul
• 7 years ago
1 answer
View Answer
What springs do you recommend for Ford F1 1951 original engine?
by Sebastian
• 7 years ago
1 answer
View Answer
You say that the springs can be cut for each specific application. Does that mean that the springs would be to long to be used at the manufactured length ?.
by terry
• 7 years ago
1 answer
View Answer
I have a 39 Ford Slantback 2door with a 350/350 combo with AC, what is the best rate, thanks guys
by Hessler
• 8 years ago
1 answer
View Answer
i have a mustang 67 fastback with a 302 engine on a Mustang ll suspension. What spring do you recommend?
by hector
• 8 years ago
2 answers
View Answers
I have a 1953 F100 (all steel), boxed frame with a '58 392 Chrysler Hemi & modified 400 trans. and Mustang II suspension. What spring should I use?
by Jake
• 8 years ago
1 answer
View Answer
How do you determine the length of the spring to be cut to.
by lee
• 8 years ago
2 answers
View Answers
I have purchased a hot rod, 1939 Chevy 2 door sedan with a Chevy big block 454 engine with a thm 400 transmission. I need to replace the front springs on the mustang ll front end, can you suggest the rate for the springs?
by Lee
• 8 years ago
2 answers
View Answers
10 of 37 questions shown
