Products to Compare (max of 3)
Compare These Parts
Talk to the Experts. Call 800.979.0122, 7am-10pm, everyday.
Customer Service
Since 1952
  • Expert Tech Support
  • Huge Inventory
  • Fast Shipping
Add to Cart
9 Inch Ford Alternator Drive System
9 Inch Ford Alternator Drive System

9 Inch Ford Alternator Drive System

1 Review | 5 Answered Questions
In Stock
Ships FREE
9 Inch Ford Alternator Drive System
9 Inch Ford Alternator Drive System
Zoomed In Image
Part # 91084110
Add to Cart
Call to Order
Add to Buildlist

What's In The Kit
Videos & Articles

Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Build Your Kit

You're almost there! This kit has an option or two for you to select. Let us know which options you want for your new kit.
Add to Cart


Belt Type:
Alternator Case Style:
Alternator Amperage:
50 amp
Alternator Finish:
Powder Coated
Pulley Diameter:
Overall Length:
MFG. Part #:
Sold in Quantity:


Face it, that alternator is ugly and in the way. To clean up your engine compartment you could mount this small alternator on your 9" Ford rearend. The bracket bolts to the pinion support and the yoke has a pulley to drive the one wire 50 amp alternator. But you have to remember that if you are not moving, this set-up is not charging. You will have to take it out at highway speeds to charge the system up.  Features short/narrow style yoke that accepts 1310 series u-joints (1-1/16" cap x 3-7/32").

  • Short narrow yoke
  • Accepts 1310 Series U-joint (1-1/16" cap x 3-7/32")
  • 1310 to 1330 and 1350 u-joints noted below


Alternator is 50 AMP.

Alternator pulley diameter is 2-3/4".

Pinion pulley diameter is 4-1/2".

Centerline of pinion to centerline of alternator is 8-3/4".

Centerline of alternator to outside edge of bracket is 11-3/4".

Overall length of alternator is 5-5/8".

Alternator mounts to the left of the pinion and faces forward.

Back of alternator to housing is 1".


Some parts are not legal for use in California or other states with similar laws/regulations

Related Products

What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • Part of Kit - Will Not Ever be Active on Web
    Qty x 1
  • Sweet Mfg. 501-30046 9 Inch Ford Short Narrow Yoke with Pulley
    Qty x 1
  • Example Part Two
    Qty x 1

More Like This


Q & A

Videos & Articles
  • Speedway Motors employee Tim M. Decided to take us along as he revives his 241 "Baby Hemi". In this installment, Tim walks us through updating the old wire covers with a nice set of Offenhauser Finned Wire Covers.
    Learn More
  • Speedway Motors has some great tips on how to get the best performance out of your ignition system. Let's take a look at the the GM HEI style distributor, possibly one of the most affordable performance distributors today.
    Learn More
  • Speedway Tech Zach discusses the Pertronix Ignitor III conversion in his '55 Chevy.
    Learn More

You May Also Like