Q: How do I determine which rear brake kit fits my axle?
A: Magnum manufacturers a variety of rear disc brake kits for popular Ford rearends used in hot rods. This chart will give you critical dimensions to help you identify which housing ends you have and what rotor offset you will require.
Q: My brakes are dragging, what are the most common causes of this?
A: Most brake dragging problems can be traced down to one of the following issues:
Q: How do I determine which axle I need for my build?
A: Magnum manufacturers a wide variety of axles for most early Ford and some other custom applications. Our narrower, 46" Tube and 46" and 46 1/2" I-Beams are well suited for '28-'34 fendered cars, offering improved tire clearance combined with a perfect stance and a great fit. Our 48" axles are popular on fenderless hi-boy style cars for a low, wide stance. We also offer narrower 47 3/4" and 50" axles for '37-'41 and '42-'48 Ford cars and trucks. If you need assistance, just call our technical department for more information.
Q: How do I determine the drop on an I-beam or tube axle?
A: Stock axles generally have about 1 1/4" of drop built-in, and our dropped I-beam and tube axles drop a given amount (4"– 6") beyond the factory axle. The drop is calculated from the top of the king pin boss to the top of the perch boss.
Q: What makes Magnum axles better than the knock-off products I see advertised online?
A: Magnum Axles are produced to the highest standards in the industry and recognized by professional street rod builders worldwide. Here are just some of the reasons to buy Magnum:
Q: Do I need a power booster for my application?
A: For most applications with a curb weight of under 3,000 lbs. using Magnum brake kits with 11" rotors and a matched master cylinder, you will generally not need a power booster, saving valuable space.