Flex-Master 4-inch Lift Leaf Springs, 78-96 Bronco, 73-96 F150 SKU: 791140

Name: Flex-Master 4-inch Lift Leaf Springs, 78-96 Bronco, 73-96 F150
Brand: WILD HORSES 4X4
SKU: 791140
Price: 599.98 USD
Availability: InStock
Rating: 5 (1 reviews)

Flex-Master 4-inch Lift Leaf Springs, 78-96 Bronco, 73-96 F150

Flex-Master 4-inch Lift Leaf Springs 78-96 Bronco 73-96 F150

Product Overview:

Flex-Master leaf springs are designed for strength, flexibility, and practical spring function whether on the street or off-road. Full size Ford 4 inch lifted leaf springs. Fit 1978 and 1979 Ford Broncos. Also fits 1973-96 Ford F150 4WD. Guaranteed the best leafs for your full-size Ford.

Full description

Flex-Master Leaf Springs Pair 4inch 7-Pack for 78-96 Bronco and 73-96 F150 4WD
View the second image above to see the following features of our leaf spring. We were after three things when we designed our Flex-Master leaf springs. First, strength is very important so we chose a nine leaf spring ( 1 ) with Berlin eyes ( 2 ) on both ends and we upgraded to a 7/16" center pin ( 3 ). We have found the stock 3/8" pins inadequate for today's wheeling. Slight clearancing on the stock spring wedge is necessary with the new center pins.

Next, we wanted flexibility. This is achieved by the progressive design. We have also added UHMW polyethylene tip inserts ( 4 ) and galvanized liners ( 5 ) to provide separation for less friction and smoother operation.

Lastly, practical spring function is enhanced with a double wrap front eye ( 6 ) for safety. We included a flat mounting surface ( 7 ) which allows for a non-preloaded installation and proper match to axle mounting surface. Strategically located riveted bolt clips ( 8 ) are used to keep springs in line and assist in dampening axle wrap.

California residents: Proposition 65 Warning

Q&A

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Asked by AL, January 15, 2024

Q: With the installation of these to leaf springs in my 1979 Bronco will I have to lengthen my drive shaft?
Do they install in the factory mounting locations? or do I have to cut and re-weld mounting brackets?
Will I need to change out my shocks to longer travel shocks? and move shock mounts?
Do I need a longer flex brake line?
Do they make these is a 2 lift spring?
What is the Pounds per square inch of weight to flex?

⮞ 1 Answer

Answered by ☆ sales - January 17, 2024

A: Concerning the drive shaft we have installed many of these lifts without having to do driveshaft mods.

They do install in the stock mounts.

We would opt for a longer brake hose s with these springs.

At this time 1/17/24 4 only.

You will need to call in that question, not sure what you are asking.

Asked by Anonymous, December 13, 2023

Q: are these 9 leaf springs or 7

⮞ 1 Answer

Answered by ☆ sales - December 15, 2023

A: These leaf springs are a 7 leaf pack.

Asked by Steve Lange, April 15, 2020

Q: Would these rear springs work for a 79 F150 long bed? Just curious, Thanks in advance, You Guys Rock!

⮞ 1 Answer

Answered by ☆ sales - April 16, 2020

A: Sure, we have had our leaves used in F100's and F150's of that era. A long bed should be no trouble. We do not have the correct length u-bolts for the trucks, the 78-79 Bronco u-bolts are too short. You'll need to source those. Thank you!