In Stock
Inspected & Documented
Condition notes recorded before palletizing.
30-Day Startup Warranty
Covers block, heads and internal moving components.
In Stock & Ready to Freight
Auto Parts & Accessories
Model A 4-Bar I-Beam Axle Kit for Ford Spindles, Chrome
$1,057.91
+ $185.00 flat-rate insured LTL freight
(details)
$1,242.91 delivered to the continental US
- Palletized and heavy shrink-wrapped for freight
- LTL carrier delivery with optional liftgate service
- Ships in 1–2 business days from Los Angeles, CA
- Transit typically 3–7 business days, continental US
Secure checkout by Stripe
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
Product Summary
Universal Fit, Straight Axle Front Suspension Type
- 48″ I-Beam Axle Model A 4-bar for Ford spindles
- Chrome steel
- Requires ’37-’48 Ford passenger car spindles
- 48″ kingpin-to-kingpin I-beam axle, 4″ drop
- 31-1/4″ eye-to-eye 4-leaf Super Glide cross spring
Installation Tips !
We strongly reccommend the use of a front panhard bar (such as our 910-49801, at right) with four bar front suspensions. Four bar suspensions increase suspension travel over original wishbones or radius rods, which increases the need for side-to-side axle control. If using a Vega cross steering system, the panhard bar becomes mandatory as any side-to-side movement will cause bump steer.
Details
Save yourself the searching and confusion with these complete ’28-’31 Ford Model A front suspension kits. Each kit includes a 48″ wide, 4″ drop I-beam axle, our famous urethane-bushed 21″ long four bar assembly, perch bolts, lower shock mounts, spring shackles, Super Glide spring and the necessary brackets and hardware needed for assembly.
Requires ’37-’48 Ford passenger car spindles.
Each kit includes:
- 48″ kingpin-to-kingpin I-beam axle, 4″ drop
- Urethane-bushed 21″ long 4-bar assembly
- Forged steel perch bolts
- Forged steel lower shock mounts (key-slotted design)
- Spring shackles w/ nylon bushings
- 31-1/4″ eye-to-eye 4-leaf Super Glide cross spring
- All hardware for assembly
Charts
-
Front Axle/Suspension Tech Tips (JPG)
KEY SPECS | |
|---|---|
| MFG. Part # | 91639541 |
| Brand | Motors |
| Front Suspension Type | Straight Axle |
| Suspension Height Adjustment | 4 Inch Lowered |
| Control Arm Style | 4-Bar |
| Shock Type | Not Included |
| Spring Type | Leaf Spring |
| Finish | Chrome |
| Bolt Pattern | Not Applicable |
| Rotor Diameter | Not Included |
| Spindle Style | Ford Stock |
| Dropped Spindles | No |
| Dropped Axle | Yes |
| Dropped Control Arms | No |
| Front Leaf Spring Style | Spring-Over Axle |
| Spindles Included | No |
| Steering Included | No |
| Welding Required | Yes |
Startup & Installation Checklist
- Replace timing components, water pump and plugs before initial startup where applicable.
- Refill all fluids with manufacturer-specified oil and coolant.
- Verify sensors, ECU pinouts and grounds against your chassis or hull wiring.
- Startup warranty covers heads, block and internal lubricated components for 30 days from delivery.
Full terms: 30-day startup warranty · returns
