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TIMBERLINE WILL BE OFF-SITE 5-18/5-27. ORDERS PLACED AFTER 5/17 WILL BE FULFILLED AFTER THE 27TH. New email support will resume on the 28th. If you have already placed an order and are awaiting delivery, you should ship 5/20. Core kit shipping will resume in June.
TIMBERLINE WILL BE OFF-SITE 5-18/5-27. ORDERS PLACED AFTER 5/17 WILL BE FULFILLED AFTER THE 27TH. New email support will resume on the 28th. If you have already placed an order and are awaiting delivery, you should ship 5/20. Core kit shipping will resume in June.

Superduty to Econoline Spring Perch Kit

Lift Option

Our standard 4x4 E-series conversion setup utilizes your original van coil springs. You can read up on our reason for pursuing the coil spring version vs the leaf spring version on our E-series page, look for the Coil V Leaf Tab.

Bolting up a Superduty axle in place of your existing front end only adds about 200 lbs per front corner. There are widely varying spring rates across both vans and trucks. For this reason, we recommend keeping the spring rate you have which will ensure the highest ride quality. There are modes to run Superduty or other aftermarket springs, we have some support, but the perch method is our preferred design and consistently performs. 

Lift & Tire Size Consideration

4" lift + 31.5" tires - Lowest lift recommended for solid axle E-series vans
4" lift + 33" tires - Daily driver grade ride height, very much a 4x4, typical Quigley stature
5" lift + 33" tire - Typical Timberline van, excellent balance of clearance/suspension travel
5/6" lift + 35" tires - "Boy howdy, that's a big van"
7-8" lift + 37/38" tires - Consistently photographed more than your neighbor's Lambo


Our spring perch setup works with any E-series van, gen 3 or gen 4 (1975-2021). We have (3) options available.

4" Perch (Most common)- Good for 5" of overall lift in the front. This perch used in conjunction with the rest of our components is sufficient to fit a 33"-35" tire on most rim configurations with no metal fender trimming. Some trimming of the plastic front bumper valence may be required when running 35s if you still have stock bumpers. 

3" Perch- This is the lowest perch recommended for 4x4 conversions. It leaves a minimal amount of suspension travel before the bump stops engage. Travel on these vans is limited by the gap between the engine cradle and differential. We recommend running Sumo Bump Stops with this perch to mitigate harsh suspension compression. This is the same height perch found on Quigley vans. 

6" Perch- This perch works well if you want additional suspension travel and are running a leaf pack in the back instead of lift blocks. We do have a Superbeef 6" lift block option that suits heavy vehicles the best.  Note: Increased drag link/track bar angle can lead to tailwag on high-profile vehicles that do not have heavy-duty sway bars, Sumo Stops, airbags, proper sway bar links, etc. In other words, if you're running a 30" super camper top with a roof rack and stock front sway bar only, this is not the product for you. 

If you're looking for a good spot to tinker with spring options, Moog offers scores of coil springs and has a catalog online

Moog springs + E-series vans. 

Years ago we ran a Moog CC880 and 880S which is a very popular spring for people trying to get the extra lift out of their vans both 2WD and 4x4. It is commonly used in a popular kit marketed to improve the ride quality of 4x4 vans. It does keep those vans off the bump stops, but that's the limit of the benefit. There are better ways to improve the performance of the common E-series 4x4 van. You can find options here

Fitment Designed For:

Van Side: Fits 1975-1991 Ford E-250/E-350, 1992-2023 Ford E-150/E-250/E-350/E-450, Cab and chassis/cutaway variants included

Truck Side: Fits 2005-2023 Ford F-250/F-350/F-450/F-550 SRW or DRW axles

Tools Required:

Standard hand tools, torque wrench, thread locker. Pneumatic impact, penetrating catalyst. Installation most easily accomplished on a lift, can be done with floor jack(s) and jack stands. 

Included: Appropriate spring perches and new hardware. 

Construction Notes: 

Perches come powder coated and are constructed of a half-inch hot roll A36 plate and with schedule 40 1.5" center supports. Grade 10 hardware

Tips / Skill Level: 

1-10 (10 being most difficult) Level 2-3

Please be careful when removing and installing springs as great pressures can be exerted when they are under load. Also, don't forget to save your plastic bushings from the original arms. These will be reused when installing our perches.  

The original van bolt/nuts are torqued to 222ft-lbs and are often difficult to remove. Remove the nut from the bolt, not vice-versa, and heat the nut up to melt the thread-locker if needed. 

Shipping, Fulfillment, Taxes, Quality, and Returns
  • Shipping: Our components are carefully wrapped & packaged and shipped via UPS, USPS, or FedEx, depending on what is available. If you require a particular carrier, please contact us ahead of your purchase.  Customers in Colorado may arrange for in-person pickup within 1-2 business days of purchase. 
  • Shipping/Fulfillment time for components: We typically ship within 1-2 business days of your order and we carefully monitor our inventory. In the event that we are unable to meet that timeframe, we will contact you and arrange either a full refund or a timeframe for fulfillment agreeable to the customer. 
  • Taxes: Colorado residents must pay a sales tax of 7.5%, no sales tax is collected on out-of-state shipments currently. 
  • Quality and Returns:  We are consistently complimented on the quality of our products and the ease of installation. Fabricated components are generally hand-built here in Colorado by seasoned professionals. Replacement or aftermarket parts are only offered in high-grade options.

    If you are in any way disappointed in the components, we will issue a full refund less the cost of shipping when the product is returned within 30 days of receipt. If you decide to return any components that didn't apply to your build or you changed your mind about, a shipping +15 % restocking fee will be deducted from the refund.