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IFS SUSPENSION

AFFORDABLE IFS

Early vehicles (mainly pre-1933) use fenders that bolt directly to the top of the frame rails and have the axle centerline located closer to the front radiator grille/cowl. This makes it very difficult to correctly set up an MII-based suspension on these vehicles without having to cut the fenders and cowl for the upper control arm and rack clearance.  Our Affordable IFS is the best solution for these cars.  With proper geometry, stance, and tire-to-fender clearance you’ll be one step closer to hitting that open road!  This kit gives you the same ride height and width as a 4” dropped and 2” narrowed axle, but with an independent ride at just the right price!
Our Affordable independent front suspension kit uses many OEM parts to keep the maintenance easy and cost down.  Your wheels will be 56” hub-to-hub with the spindle center approximately 1” above the bottom of your frame rail.  Proper Ackerman, positive camber gain and anti-dive geometry are all designed along with a rear-steer manual rack and pinion for splash pan clearance.
To achieve maximum strength in our Affordable IFS we make our main crossmember of .250” wall structural steel and our tubular arms of .188″ wall DOM seamless tubing. We never use flame cut parts due to the problems associated with heat-crystallized steel parts.
We use the proven Mustang II springs and shocks and many other OEM components on our Affordable IFS.  This helps keep the cost down and makes it easier to source replacement parts when worn items need replacing. You’ll get the maximum ride quality and keep more money in your pocket!
A coilover version will be in development soon!

• Crossmember & shock tower assembly
• Tubular arms with bolts, bushings, and ball joints
• Standard or dropped spindles
• New OEM brakes
• New OEM tie rod ends
• New OEM rack & pinion
• New OEM springs & shocks

Price: $2,850.00

Upgrade to our Nickle Plated Control Arms $275.00

  • 1928–1934 Ford

  • 1928–1933 General Motors  

  • 1928–1932 Mopar 

  • Many other applications can be built- we just need the measurements mentioned below. 

NOTE:

For all applications, we need you to measure the frame outside width and depth, at the axle centerline and 6” ahead and back. This allows us to set up our JIG to match your frame exactly!

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CLASSIC IFS

Our Fat Man Fabrication Classic IFS Kits are designed for customers who love the heavier luxury cars built in the same era as the Affordable IFS. This kit uses ‘73-’87 Chevrolet pickup truck spindles with 12” 5-on-5” bolt circle disc brakes, rear steer power rack, and extra size tubing.  Because of these vehicles’ fender lines, they require a short upper control arm to clear them and a rear steer power rack and pinion which will not interfere with the lower grill shell pan.
We supply super heavy-duty tubular control arms and crossmembers that will take the weight of these very heavy automobiles. We spent extensive time and research perfecting our Independent Front Suspensions. The Classic IFS is designed for these larger early cars like the big Buicks, Oldsmobiles, and Packards that have rails wider than 30” outside-to-outside at the axle centerline and a hub-to-hub track width around 60”. 

  • 1928 – 1933 Buick 

  • 1929 – 1933 Cadillac  

  • 1928 – 1933 Chrysler 

  • 1928 – 1933 Packard 

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• Crossmember & Shock Tower assembly
• Tubular arms with Bolts, Bushings and Ball Joints
• 1973 -1987 Chevy Pickup Truck Spindles
• 12"x5" Bolt Circle Brakes 
• OEM Tie Rod Ends
• OEM Rack & Pinion
• OEM Springs & Shocks

Price: $3,400.00

Upgrade to our Nickle Plated Control Arms $275.00

NOTE: 

For Independent Front Suspension (IFS) Kits study the drawing below. Pay particular attention to the position of the rack & pinion and its pivot points. You cannot reverse spindles or change the length or angle of the upper control arms to clear the fenders without creating dangerous changes in handling. The drawing does not reflect our opinions but rather pure physics, mathematics, and geometry.  Regardless of what some advertisers may try to tell you, the laws of engineering do not change. After studying, you’ll know which one works right!

EXTREME IFS

The Extreme IFS is specially engineered for heavy vehicles 1949 and Later and is based on ‘73- ‘87 Chevy pickup spindles and brakes. These heavy-duty parts have been selected and then modified for use in this particular design. We supply a 2” dropped spindle (using a 12” diameter rotor with a 5 on 5” bolt circle) which puts the center of the wheel about 1” below the bottom of your frame rail. We can also build the system for 8 lug wheels and brakes in either the dropped or standard spindle.

5 on 5” Extreme IFS

We Supply

  • Crossmember and shock tower assembly

  • Control arms with bolts, bushings, and ball joints

  • Standard or dropped spindles

  • 12” x 5” disc brakes

  •  Modified tie rod ends

  •  ‘94 -’04 mustang power rack and pinion

  •  New OEM springs and shocks

Stage 2

Crossmember Kit $3,650.00

Frame Stub Kit $5,130.00

Stage 4

Crossmember Kit $4,350.00

Frame Stub Kit $5,830.00

8 on 6.5” Extreme IFS

We Supply

  • Crossmember and shock tower assembly

  • Control arms with bolts, bushings, and ball joints

  • Standard or dropped spindles

  • 13” x 8” disc brakes

  •  Modified tie rod ends

  • ‘94 -’04 mustang power rack and pinion

  •  New OEM springs and shocks

Stage 2

Crossmember Kit $3,950.00

Frame Stub Kit $5,545.00

Stage 4

Crossmember Kit $4,65.00

Frame Stub Kit $6,245.00

NOTE: Each spindle choice will use different brakes and bearings so changes after the order is filled, will result in a longer manufacturing time. Due to the longer control arms required for proper geometry, these kits can only fit frame rails that are 28” outside-to-outside or less when measured at the axle centerline.

Let’s Work Together

For more information or to order, give us a call. One of our associates will be happy to assist you.