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4 inch Lift Leaf Springs Kit, 78-79 Bronco, 73-79 F150 4WD SKU: 791130
4 inch Lift Leaf Springs Kit, 78-79 Bronco, 73-79 F150 4WD
4 inch Lift Leaf Springs Kit 78-79 Bronco 73-79 F150 4WD
Product Overview:
78-79 Ford Bronco 4 inch lifted leaf springs. These 7-pack leaf springs offer a softer ride & better articulation than stock full-size Bronco leafs. Kit includes Flex-Master 4" Leaf Springs, Urethane Spring & Shackle Bushing Kit, and an Extreme Duty U-Bolt Kit.
Full description
78-79 Ford Bronco 4 inch lifted leaf springs. These 7-pack leaf springs offer a softer ride & better articulation than stock full-size Bronco leafs. Kit includes Flex-Master 4" Leaf Springs, Urethane Spring & Shackle Bushing Kit, and an Extreme Duty U-Bolt Kit.
Leaf Spring Kit for Full Size Ford Broncos includes Wild Horses Flex-Master 4 inch leaf springs, urethane spring & shackle bushings, and an extreme duty U-bolt kit.
When we designed our Flex-Master leaf springs, we had three goals in mind. First, we wanted them strong. So, we went for a seven-leaf spring with Berlin eyes on both ends and upgraded to a 7/16" center pin. The stock 3/8" pins just weren't cutting it for today's off-roading. Note that when you switch to the new center pins, you'll need to clearance the stock spring wedge a bit.
Next on the list was flexibility. We achieved this by using a progressive design. We also threw in UHMW polyethylene tip inserts and galvanized liners to reduce friction and make everything run smoother.
Finally, we wanted to ensure optimal spring function. We added a double-wrap front eye for safety. We also included a flat mounting surface for an easy, non-preloaded installation that matches up well with the axle mounting surface. Riveted bolt clips in strategic spots help keep the springs in line and control axle wrap.
Off-roading puts a lot of stress on your Bronco, so we came up with extreme duty U-bolt kits to handle it. We noticed the stock U-bolt plates were bending, so we made some tougher ones. The stock 9/16" U-bolts weren't up to snuff either. It might sound easy to take a thick piece of metal and drill some holes, but we saw issues with these kinds of plates. The edges created rigid pressure points that could break the spring. So, we invested in tooling to router the edges of our plates. This keeps a stock-type edge that works well when the spring is moving around. And just to make sure everything looks good and stays protected from corrosion, every part of our U-bolt kit is zinc-plated.
If you're into trail running or rock crawling, these U-bolts are a must. They'll keep your rear axle and springs solidly in place, no matter what you throw at them.
When we designed our Flex-Master leaf springs, we had three goals in mind. First, we wanted them strong. So, we went for a seven-leaf spring with Berlin eyes on both ends and upgraded to a 7/16" center pin. The stock 3/8" pins just weren't cutting it for today's off-roading. Note that when you switch to the new center pins, you'll need to clearance the stock spring wedge a bit.
Next on the list was flexibility. We achieved this by using a progressive design. We also threw in UHMW polyethylene tip inserts and galvanized liners to reduce friction and make everything run smoother.
Finally, we wanted to ensure optimal spring function. We added a double-wrap front eye for safety. We also included a flat mounting surface for an easy, non-preloaded installation that matches up well with the axle mounting surface. Riveted bolt clips in strategic spots help keep the springs in line and control axle wrap.
Off-roading puts a lot of stress on your Bronco, so we came up with extreme duty U-bolt kits to handle it. We noticed the stock U-bolt plates were bending, so we made some tougher ones. The stock 9/16" U-bolts weren't up to snuff either. It might sound easy to take a thick piece of metal and drill some holes, but we saw issues with these kinds of plates. The edges created rigid pressure points that could break the spring. So, we invested in tooling to router the edges of our plates. This keeps a stock-type edge that works well when the spring is moving around. And just to make sure everything looks good and stays protected from corrosion, every part of our U-bolt kit is zinc-plated.
If you're into trail running or rock crawling, these U-bolts are a must. They'll keep your rear axle and springs solidly in place, no matter what you throw at them.
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Q&A
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Asked by Garrett, April 30, 2022
Q: Will the U-bolt plate work for a 73 f100 while using the original u bolts?
⮞ 1 Answer
Answered by ☆ sales - May 3, 2022
A: You should have no problem using the plates, as long as your u-bolts are long enough.
Asked by Shawn, September 12, 2020
Q: Can this kit be used on a '76 F150?
⮞ 1 Answer
Answered by ☆ sales - September 14, 2020
A: The leaf springs and bushings can be used. However, the 78-79 Bronco u-bolts are too short for the F series housing. You will need to source your own u-bolts.
Asked by william, July 12, 2016
Q: Will these fit a 1989 Bronco?
⮞ 1 Answer
Answered by ☆ sales - July 15, 2016
A: We only list them for 78-79, but should fit up to 1999.
Asked by Tomas, April 20, 2016
Q: Will these actually lift a 79 Bronco 4? Or 2 to level the back to go with 4 coils like a lot of the kits do? And are they 2 1/2 or 3 wide?
⮞ 1 Answer
Answered by ☆ sales - April 29, 2016
A: Our leaf springs will give the 78 and 79 Broncos 4 of lift over stock. They are 3 wide.
Asked by Michael, March 27, 2013
Q: Do you still need to use the factory wedges with this spring kit?
⮞ 1 Answer
Answered by ☆ WH tech - March 28, 2013
A: Yes, the springs are designed for use with the stock wedges. You don't have to use the wedges but the lift will be slightly lower if you do not. Also if you don't use the wedges you will have a greater chance of rear driveline vibration.
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