hogbackfab
73-87 GM Super Duty D60 Bolt on Coil Brackets
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$750.00 USD
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$750.00 USD
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Bolt on a strong axle and better suspension with our 73-87 Bolt on coil buckets for the 2005+ Ford super 60
Designed with the Squarebody: 1973-1987 (88,90,91) GM Truck and SUV in mind but can be made to work with other models with a 34" (+ or - 1")outside frame width at the belly.
What are the Super Duty D60 Bolt on coil brackets?
These are a HD bolt on frame brackets that hold the coil spring when swapping in a 2005+ Ford Dana 60 and convert your square body from leaf springs up front to coil springs. They utilize stock bolt holes and capture the horizontal and vertical faces of the frame. This results in an easy and super strong swap!
The panhard bar bracket is built into the coil bracket making locating and install a breeze!
Brackets are fully welded and powder coated 1/4" steel plate.
What should I use for coils?
Our brackets are built for '76-79 Ford F150/Bronco front coil springs, these are available from many different manufacturers in different lift heights.
Lift height is ~4" taller than the springs advertise, so stock springs net about 4" lift. Springs with 2" of lift will net more like 6" on your Chevy, etc. Custom coil springs are much cheaper and quicker to get than custom leaf springs, so keep that in mind if you need something special (extra weight, lower/taller lift height, etc.).
What makes the Super Duty D60 special?
Beef! With 3.75" axle tubes that are .5" thick they can definitely take a beating. They are high pinion and have a huge aftermarket support to take you as far as you want. Factory 35 spline inner and outer axle shafts.
The other great thing is they are readily available in junk yards for around $500-700, can't find anything like that in the old kingpin GM, Dodge, and Ford axles.
They come with radius arms that are better handling, better riding and much tighter steering compared to a leaf sprung suspension. It's a great update for your rig!
Some things to keep in mind.
The Super Duty Dana 60 is a driver drop axle, so if your transfer case is on the passenger side you will have to swap that out. In many cases (LS swap, Cummins/Duramax/Powerstroke swap, etc.) this is actually a problem solver as many newer drivetrains are setup with (or easier to adapt to) a driver side drop transfer case.
The SD D60 is a 8x170mm bolt pattern so you can either swap in the Ford rear axle or there are hubs with various bolt patterns available in the aftermarket (including the older GM 8x6.5" 8 lug pattern).
What are the benefits of swapping to a Super Duty D60?
Aside from the obvious strength you will gain in drivability over leaf springs. Leaf springs move forward/back and side to side with the shackles and bushings causing things to feel sloppy. Radius arms provide a designated path for the suspension to travel, making everything feel way more precise. Radius arms also give some stability characteristics like an anti-sway bar, part of the reason so many auto manufacturers use them on their trucks today!
The driver's side drop differential has become a popular swap using newer drivetrains that often need the differential on that side. LS based and Cummins/Duramax/Powerstroke drivetrains often have the front driveshaft on the driver's side and this can be an easy solution to making those transfer cases work on older trucks.
How easy is it to install the Hogback Fab Bolt on Coil brackets?
Very easy!
Upper brackets:
- Remove the front bumpstop and bumpstop bracket, you'll have to remove three rivets. If your truck has one, remove the bracket holding down the brakeline as well.
- The brake hard line will need to be routed under the frame rather than through it. You can bend the existing hardline under the frame or you can run/splice in new line.
- Drill existing holes out to 1/2", there are additional holes in the brackets that will need to be marked and drilled out into the frame.
- 7/16" bolts are torqued to 38 ft. lbs, 1/2" bolts (the four at the front of the driver's side bracket) are torqued to 60 ft. lbs. Bolt size is measured by the diameter of the threads, not the wrench/socket that the bolt uses.
Lower brackets:
- Remove the factory coil spring bracket on the axle (held on by one bolt), it is no longer used.
- The coil bracket uses the upper radius arm bolt, you'll need to remove that and run it through the coil bracket and radius arm.
- At the far outside, our lower coil bracket has one supplied bolt (on each side) that bolts the bracket to the stock coil spring hole on the axle.
- There is another hole in our lower coil bracket, inward towards the center, that will need to be drilled for a bolt/nut or drilled/tapped to accept a bolt. The castings differ, so use whichever makes sense on that side to hold that end of the bracket down.
Coil springs
- Put the frame on jack stands and let the front axle droop out.
- Slide the spring into place on the upper bracket, install the upper coil retainer (circle shaped) and nut/washer. Tighten the nut to hold the coil in place loosely at this point. Repeat for both sides of the truck.
- Align the coil with the bottom coil bracket on the axle and jack the axle up until it just contacts the coil, do not put any weight on the coil at this point. Install the lower coil retainer (circle in a circle, the larger one) through the coil and over the lower stud. Install lower nut/washer and loosely tighten nut. Repeat for both sides of the truck.
- Once the coil retainers are started on both sides, jack up the axle so that some of the weight of the vehicle is on the springs (a couple inches after the springs touch top/bottom). Once there is weight on the springs, go ahead and tighten the upper and lower coil retainer nuts. As you're tightening the bottom retainer, rotate it until it wants to sit roughly flat. 100 ft. lbs. is a good target, though you'll probably be tightening the nut with an open end wrench.
Hog Tip: Need bolt on radius arm frame brackets? HERE
Hog Tip: Need crossover steering? We have them HERE
Hog Tip: Need a panhard bar? We have them HERE
Materials
Materials
Powder-coated gloss black
.25" thick steel
Product comes welded
Grade 8 hardware
Shipping & Returns
Shipping & Returns
$16 shipping on orders valued $350 and under
Free shipping on orders $351 and up!
Returns accepted 30 days from delivery. Use the contact form to email us and get a return authorization
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Free shipping on orders $351 and up!
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