4.2148 | Front Leaf Spring Bushings | 99-04 F250-350 Super Duty

  • 4.2148 360image 1
  • 4.2148 Front Leaf Spring Bushings
  • 4.2148 Front Leaf Spring Bushings
  • 4.2148 Front Leaf Spring Bushings
  • 4.2148 Front Leaf Spring Bushings
  • 4.2148 Front Leaf Spring Bushings
  • 4.2148 360image large 1

Front Leaf Spring Bushings

Manufacturer: Energy Suspension
Part Number: 4.2148

Color: (?)
Black
Red

Exclusive for DST Customers: (?)
Free Lifetime Warranty Upgrade

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Get $25 Back with any $200+ Purchase, or $40 back with any $400+ Purchase on Energy Suspension Products
Price: $74.07

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  • 4 of 2746 - Main eye bushings
  • 2 of 15.10.412.39 - Sleeves (1.250 x 0.750 x 3.500)
  • 4 of 2421 - Rear eye bushings
  • 4 of 15.10.397.39 - Sleeves (1.000 x 0.640 x 3.535)
  • 4 of 2450 - Shackle eye bushings
  • 2 of 9.11101 - Grease
  • 1 of 17040 - Instruction sheet
  • Energy Suspension warrants its products against defects in workmanship and material for 24 months when used on passenger cars and light trucks. Products that have been abused, altered, or incorrectly installed are not covered. Energy Suspension will replace defective products or component parts, if inspection for factory personnel determines the part to be defective. Warranty replacement covers only the product. Labor claims, time loss, or freight charges will not be honored.
Cross Reference from 4.2148 to 61025
Prothane 61025
Polyurethane.
Price: $65.97
Warranty: Lifetime Warranty

FitmentFront Leaf Spring Bushings 4.2148 fits these vehicles:
Details
Polyurethane Front Leaf Spring Bushings
For high performance applications, the combination of heavy duty or performance leaf springs and HYPER FLEX performance polyurethane spring bushings deliver the maximum benefit.

4.2148 | Front Leaf Spring Bushings | 99-04 F250-350 Super Duty

Polyurethane Front Leaf Spring Bushings
  • Adds a dramatic amount of performance and durability to any vehicle!
  • Improves vehicle handling, cornering and overall control.
  • Helps the vehicle be in control when maneuvering through turns, during standing start accelerations, braking, even over bumps and berms.
  • Made of Energy's HYPER FLEX performance polyurethane to add performance and durability.
Footnotes
  • One Set Will Cover the Left and Right Side

Front Leaf Spring Bushings '99-'04 F250 Super Duty 4WD | '99-'04 F350 Super Duty 4WD

These Polyurethane Front Leaf Spring Bushings from Energy Suspension will replace the vulnerable rubber bushings that were originally installed on the 4WD 1999-2004 F250 and F350 Super Dutys. Stronger polyurethane bushings will last much longer than rubber and hold the front leaf springs in alignment keeping your front axle, and front wheels, pointing in the direction you steer them.

99-04 f250 super duty front leaf spring bushings
worn rubber suspension bushing

The Source of Alignment Problems

The rubber front leaf spring bushings on F250 and F350s are good for absorbing road noise and vibration but they do this by deflecting or flexing. This flexing can allow the front leaf springs to shift when the suspension travels and throw off the alignment before the bushings resume their original shape. Given enough time and wear those bushings won't resume their shape at all and your leaf springs will be loosely connected to the frame of your truck at best.

Since the leaf springs help hold the alignment of the axles you can experience bump steer when that connection is not held firmly by the bushings. This means that even when your steering wheel is straight you won't be moving straight ahead. If the rubber bushings wear down or degrade completely your ride will be incredibly rough, your doors and hood might not latch easily, and a replacement will be almost a necessity.

99-04 f350 super duty 4wd front leaf spring bushings

The Polyurethane Solution

You could use rubber replacements to restore your truck to factory settings but those bushings will deflect and eventually fall apart like the originals. The trucks we see here around Stephenville, Texas haul some pretty punishing loads that make short work of rubber bushings. If you want a longer lasting and better-performing solution then Energy Suspension's polyurethane front leaf spring bushings for the '99-'04 F250 and F350 Super Duty are your answer.

These polyurethane bushings replace the original flexy rubber and make a firm connection between those axle-holding leaf springs and the frame of your truck. This means consistent front axle alignment, straight wheels, and more even wear on your front tires since they aren't being pushed along the ground at an odd angle.

polyurethane front leaf spring bushings f250 f350 super duty

Front Leaf Spring Bushing Upgrade

Energy Suspension's polyurethane front leaf spring bushings will stand up to motor chemicals, weather, and road salts; all of which will degrade rubber. In north central Texas where the pavement can be boiling at the beginning of the week, and the roads freeze over by the end, the resilience of polyurethane compared to rubber is a great feature.

Some folks will experience more vibration from the road but if you weigh this against the dramatic increase in longevity and performance the tradeoff isn't bad. Also the squeaking that is sometimes associated with polyurethane bushings is nullified by properly greasing polyurethane bushings during installation. Lastly, when we say these bushings will last the life of your truck, Suspension.com backs that claim up with our exclusive lifetime warranty.

Energy Suspension 4.2148

Product Reviews for 4.2148 | Front Leaf Spring Bushings | 99-04 F250-350 Super Duty

5 Star (14)
78%
4 Star (2)
11%
3 Star (0)
0%
2 Star (1)
6%
1 Star (1)
6%
starstarstarstarstar_border

Energy Suspension 4.2148

4 out of 5 based on 18 user reviews. Write a Review

A
verified_user

starstarstarstarstar" Review 1 Year Later "

So far they have been great very pleased no more clunking.

verified_user Verified Buyer - - . Energy Suspension 4.2148 - 5 out of 5
C
verified_user

starstarstarstarstar" Review 1 Year Later "

The ride is solid. Quiet also.

verified_user Verified Buyer - - . Energy Suspension 4.2148 - 5 out of 5
S
verified_user

starstar_borderstar_borderstar_borderstar_border" Bad wrong bushings "

The bushing arrived got my truck torn down and old bushing out to find out the new ones are the wrong size and do not fit into the leaf springs new bushings are to big I had good luck doing the rear ones but not happy how the front is going now Im out of a truck until I can get the correct ones. Editors Note: Customer has a lift kit on his truck using springs.Kit 4.2148 will fit only OEM springs.

verified_user Verified Buyer - - . Energy Suspension 4.2148 - 1 out of 5
A
verified_user

starstarstarstarstar" Review 1 Year Later "

So far they have been great very pleased no more clunking.

verified_user Verified Buyer - - . Energy Suspension 4.2148 - 5 out of 5

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question_answer Customer Questions and Answers


Question:
Will part number 4.2148 fit my 1999 F250 4wd?
Answer:
Yes, part number 4.2148 will fit the 1999 F250 4wd.

Question:
I am interested in the front leaf spring bushings PN 4.2148, but because I have lift springs installed I am not sure if these will fit?
Answer:
The 4.2148 is an OE stock replacement. We do not guarantee fitment for lifted vehicles Remember: Most spring eyes have an outer metal shell. Some shackles are this way as well. The outer shell must be removed. .

Question:
Some part numbers have a G. What's the difference?
Answer:
The 4.2148 is an OE stock replacement. We do not guarantee fitment for lifted vehicles.

Question:
Will these work on a 4 in lift?
Answer:
No bushing will not since they are only OEM stock fitted.

Question:
What type of grease is recommended for part number 4.2148?
Answer:
Any type of marine grade grease or silicone grease is recommended for poly bushings.

Question:
Will part number 4.2148 fit my 1999 F250 2wd?
Answer:
On the years 80-98 there was a large difference between year models where the sizes differ such OD is 2 in for the part 4.2121 also the other differences were between common of mold leaf spring bushings. However, in the years 99-04 the manufactures s switch and used all the same measurements on those years. On the part 4.2148 does not matter if you have an early or late model parts are guaranteed to fit. ...see more

Question:
Will part number 4.2148 work with a rough country 6 inch lift?
Answer:
No, part number 4.2148 are oem stock replacements only, not an aftermarket replacement.

Question:
Will these work with Pro Comp Suspension 22210? Just bought leveling springs and would like to use these bushings if they will fit.
Answer:
Yes as long as your truck is 4wd and these are for OEM replacements.

Question:
Is part number 4.2148 going to fit my procomp lift kit?
Answer:
No, part number 4.2148 is for the stock equipment only. These bushings will be too small for the procomp lift kit.

Question:
Will part number 4.2148 work on the front leaf springs of a pro comp 4 inch lift kit?
Answer:
No, part number 4.2148 is a direct stock replacement.

Question:
Will the part 4.2148 work for a 2002 f350 with a factory 6inch lift?
Answer:
No, the part will not work with a 6-inch lift. The part is only made to replace OEM stock bushings. I do apologize for this inconvenience. Another option we have for you is universals which may work better for you. The universals are still made out o of polyurethane and are based on measurements which can be found here on this page: https://www.suspension.com/universal-bushings.asp ...see more

Question:
Will part number 4.2148 fit my fabtech springs?
Answer:
No, part number 4.2148 will not fit the fabtech springs.

Question:
What is a good way to remove old bushings?
Answer:
Here is a link to a video we made showing you how to remove your old bushings, https://www.suspension.com/blog/how-to-burn-out-suspension-bushings-the-right-way/