Menu

Shop

Garage

Cart

Account

Products to Compare (max of 3)
X
Compare These Parts

Spring-Over Axle Kit Q&A

3/7/2017
Add Article To List
Tags: Tech, Street, Street

In this Tech Tip, a customer has a few questions for John about one of our spring over axle kits.

“Hi, I have a few questions about your spring over 4" drop axle, P/N 91339005.

  • Where do I weld the batwing to the tube from the center line?
  • What should the camber be, and should it negative for a straight ride?
  • Is there an adapter to bolt a shock mount on?
  • How far back should the hairpin mounts be on the frame and how far down should they be placed from the top of the frame?”

You inquired about our Spring-Over Axle kit, P/N 91339005 and about some specifications. These dimensions can vary according to the spring you are using on top of the axle. In the particular kit you referenced the Hairpin/radius rod brackets are spaced 32" apart. The spring used is a 26". Camber is preset into the axle depending whether Ford or Chevy and they are not the same. The Ford is set at 8 degrees and Chevy at 4 1/4. Caster is lean back of the axle at the top and when the axle is set up in the car should be between 5-7 degrees positive. There are many options for shock mounts but the easy way is to use a shackle with the shock stud, P/N 715175. The location for the hairpin brackets and how far down depends on your spring mount or cross member location in the frame, and the caster you are setting into the axle. Feel free to visit us on the web at www.speedwaymotors.com or call 1-800-979-0122 with questions or to place an order.

  • John W.

Products Featured in this Article

Related Articles

Upgrade Your Ride with a Mini Starter!
by Mark Houlahan - Posted in Tech
7/5/2022
Little is thought of your engine’s starter until it refuses to turn your engine over at the worst possible moment. Today’s powerful mini starters can crank the biggest engines with ease. Learn how in our buyer’s guide.
Benefits of Electronic Ignition System Upgrades
by Mark Houlahan - Posted in Tech
6/8/2022
Upgrading to electronic ignition is a huge improvement in performance, reliability, and lower maintenance that you can add to just about any engine your project may be running. Learn all about your electronic ignition choices in this buyer's guide.
Using GoJak Wheel Dollies to Easily Move Your Vehicle
by Mark Houlahan - Posted in Videos
6/6/2022
The GoJak wheel dolly makes moving immobile vehicles around your shop easy as place, pump, and push! Watch the video for all the details and you'll wonder why your shop hasn't had a set sooner!
Understanding Shock Types and What Is Best for Your Project
by Mark Houlahan - Posted in Tech
6/3/2022
Shocks and struts may be confusing, but our buyer's guide is here to help you make sense of all the options.
Dual Plane vs Single Plane Intake Manifolds Explained
by Mark Houlahan - Posted in Tech
5/6/2022
Dual plane or single plane intake manifold? Which is the best for your project vehicle's engine? Learn the differences in our buyer's guide.
Electric Fuel Pumps vs Mechanical Fuel Pumps: What Is Best For Your Application
by Mark Houlahan - Posted in Tech
5/3/2022
Learn how to best choose between an electric or mechanical fuel pump for your project vehicle. We help you you understand the differences in order to properly design a performance fuel system with our buyer's guide.
Installing Exterior Trim on a 1969 Chevelle
by Tyson Jurgens - Posted in Tech
4/18/2022
When Tyson picked up his '69 SS396, all the trim was in the trunk. We follow along as he installs the shiny stuff to finish out his project.
Ford And Chevy Spindle Options For Solid Axle Hot Rods
by Speedway Tech Team - Posted in Tech
4/4/2022
Dive into some of the history and unique differences between Ford and Chevy spindles for solid front axles and what will perform best on your hot rod.
Brake Pad Identification and Friction Surface Options Explained
by Speedway Tech Team - Posted in Tech
3/18/2022
We offer a guide to follow when selecting a new set of brake pads for your race or street car. It's important to know the friction quality and pad size before selecting a new set of disc brake pads.
Installing ICT Billet LS Motor Mount Adapters
by Speedway Tech Team - Posted in Tech
10/6/2021
Jordan shows us how to use ICT Billet motor mount adapters to bolt a 6.0 LS into his 3rd-Gen Firebird.
Error
X
Note
X
Ok