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Since 1952

Posies Super Slide Springs 152R 48-52 Ford Pickup Rear Dropped Springs

SAME DAY SHIPPING! Most orders ship within 24 hours.

Material Type:
Sold in Quantity:
Number of Leafs:
Leaf Spring Eye Type:
Reverse Eye
Spring Location:
MFG. Part #:
Garage Sale:
Overall Width:
Length Eye to Eye:
Posies Super Slide Springs 152R 48-52 Ford Pickup Rear Dropped Springs
Posies Super Slide Springs 152R 48-52 Ford Pickup Rear Dropped Springs
Posies Super Slide Springs 152R 48-52 Ford Pickup Rear Dropped Springs

Click image to enlarge

Please NOTE the following about this product:

  • This item is sold as a pair.



Q & A

What's in the Box

These new multi-leaf rear springs by Posies lower your classic Ford half-ton pickup 3" more than a set of stock replacement springs. Super Slide springs incorporate moly-nylon buttons that reside in die-formed pockets at the tips of the spring leave. Replace your 50 year old stock springs with these new, computer-designed leaf springs for a much smoother ride. Springs have reduced load capacity from stock just from the fact that you are lowering your vehicle.

Factory spec spring eye bushings come with springs. Shackles, shackle bolts and U-bolts sold separately. 


  • 43-1/2” eye to eye measurement
  • 2” wide leaf
  • Bronze bushings pressed in and reamed to .748" or 3/4”

Customer Reviews

Rated 3.5 out of 5 by 2 reviewers.
2 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star

Verified Purchaser

not as advertised

August 24, 2014
These springs DO NOT fit upside down like shown, they do fit the opposite way but do not lower the truck anything close to 3"
No, I would not recommend this product.
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Merchant Response:

48F1 - Thank you for your review. We appreciate hearing from you. Please note that this product's photo has been updated to reflect the proper mounting position. We apologize for any lack of or misleading information within any of our product descriptions. Speedway Motors thanks those that bring this to our attention and are happy to help ensure that our customers have the best experience with us in any way.
Verified Purchaser
Prescott, AZ, USA

Exactly what I wanted

June 03, 2014
These springs lowered the truck by approx. 3 inches and improved the overall ride of the truck. We plan on installing the Posie Duflex on the front this fall or whenever Speedway has a shipping special again.
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

6 questions : 7 answers

1 answers

will these rear springs work on a 1947 ford pickup? the D152F front springs do on my 47 ford pickup. If so what else is needed?

Sesser, IL 62884, USA
September 07, 2014

will these rear springs work on a 1947 ford pickup? the D152F front springs do on my 47 ford pickup. If so what else is needed?


September 09, 2014
The majority of suspension components from 48 to 47 will interchange but on the rear springs #580152R you will need to verify the 2.00” width of the spring and the eye to eye of 43.50”
2 answers

well this springs mount in the old hangers?

March 23, 2014

well this springs mount in the old hangers?


June 04, 2014
Yes they will, it is a straight bolt in installation.
March 24, 2014
Yes these springs will work in the original spring mounts and hangers.
1 answers

What length U-bolt? What length of U-bolt should be used with these springs?

Upstate New York
January 06, 2013

What length U-bolt? What length of U-bolt should be used with these springs?


January 07, 2013
Speedway offers u-bolt set #9163326 for these springs that are 8-1/2" in length
1 answers

Will my stock Shackles and U-Bolts work with these springs (both front & rear)? If not, do you carry them?

March 01, 2011

Will my stock Shackles and U-Bolts work with these springs (both front & rear)? If not, do you carry them?


March 07, 2011
Yes, you should be able to use the stock shackles and u-bolts with this kit. We would recommend using new u-bolts with the new springs, but the dimensions are all the same as your stock springs. This kit will lower your ride height while also providing you with a smoother ride.
1 answers

which eye is on the shackle side? which eye is on the front Mount?

Switzerland / Europe
August 01, 2015

which eye is on the shackle side? which eye is on the front Mount?


August 03, 2015
Measure from the center bolt to the ends of the spring. The shorter side goes to the front (fixed end) of the vehicle.
1 answers

can the stock shocks be used ?

Al B
Rhode Island
September 30, 2015

can the stock shocks be used ?


September 30, 2015
No the stock shocks will be too long for these dropped springs. We offer several shocks depending upon the final ride height of your truck. Once the springs are installed you can measure from center to center of the shock mounts with the truck sitting on the ground to get the proper shocks.
Page 1 of 1

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