Solid Axle 4x4 Coil Spring Van Conversions
Ford E-Series
Research
Here you can explore the different types of kits we offer, see what’s included in our popular core kit, and identify the remaining components needed to complete your 4x4 conversion. If you're ready to purchase a kit, use the form at the bottom to request a full build sheet for your specific van and situation.
Core kit
This is our standardized E-Series 4x4 van conversion kit and most popular offering. It includes all components necessary to install the axle, lift the van, address steering and stabilization for the truck/van interchange. The kit also covers transfer case shifting, brake line concerns, shock mounting differences, and various small components to expedite your build.
We provide all the non-over-the-counter components needed for the conversion, along with a printed and bound color manual that details every aspect of the build process.
Please note, this kit does not include shocks, stabilizer shocks, axle with steering linkages, driveshafts, wheels, tires, transmission conversion, or transfer case. Below, you will find a list of included components and the additional parts required to complete the conversion.
Everything But the axle
Our everything but the axle kit includes all components listed in the core kit as well as: shocks, stabilizer shocks, sway bar, driveshafts, transfer case, and the recommended components we use to rebuild the 2005-2010 Superduty axle.
This is the easiest way to get most everything you need ready to roll, except the front axle core which is widely available most everywhere in the country.
This kit does not include front pinion and inner axle seals, wheels, tires, exhaust modification or transmission conversion components. Below, you will find a list of included components and notes about additional model specific requirements.
Pre-runner (staged)
For some, it makes sense to stage a 4x4 conversion or start by lifting the van. The issue with typical 2WD Econoline lift kits is that almost nothing is reusable if you decide to convert it to 4x4 later.
Our Pre-runner kit addresses this by covering the minimum requirements, focusing on getting the axle underneath and lifting the van without dealing with transmission, driveshaft, transfer case, or other costly components of the full 4x4 build.
This process is still a significant part of the overall conversion, but it eliminates waste and reduces the initial investment in your chassis build.
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Kit / Part
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Notes
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4-Link kit
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Bolt-in design
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Track bar kit
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Can be ordered weld-in or bolt-in
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Front spring perch kit
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4",5"+6" lift options
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Rear end kit
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Standard kit includes lift blocks, rear wheel adapters, rear SSE shock hardware kit & U-bolts, 4"+5" lift options
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Transfer case shifter kit
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Shifter assembly and connecting rod
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Transmission crossmember drops
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Lowers transmission to match pinion angle change in rear driveshaft
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Transfer case + driveshaft install kit
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Includes front and rear driveshaft hardware required, transfer case gasket, and t-case to transmission hardware
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T-case shifter trim kit
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Racequip shift boot & factory Ford t-case shifter ball
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Easy wire 4x4 LED kit
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LED 4x4 dash indicator for transfer case range
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Pitman + Drag link stabilizer kit
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Upper stabilizer kit (frame to drag link/pitman)
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Steering stabilizer kit
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Lower stabilizer kit (axle to lower steering tube)
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Pitman arm
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Pre-reamed pitman arm for Super Duty drag link (compatible with all traction control variations)
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Front sway bar kit
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HD sway bar links, sway bar relocation hardware, Weld-in HD sway bar tabs (bolt-in available)
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Front brake line kit + abs jumpers
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Extended front brake lines, abs sensor adapter jumper pigtails
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Front bump stop kit
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Front bump stop spacers
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Installation master manual
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Printed full-color bound manual
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Helper kit
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Steel it chassis paint can (the good stuff), thread locker, anti-seize, witness marker, paint pen, extra zip ties, frame-cut welding shield(wood), 9/16" cobalt bit
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Fuel tank blank
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Shortening blank for vans that require
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Timberline Core Kit Inclusions
Ford e-series 4x4 conversion 1975-current
This section includes parts included in the "Core Kit" and vary slightly by year/model.
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Transfer Case
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Notes
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BW1356 - (31 Spline Input) (AOD / C6 Transmissions)
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Broncos / early F-series pickups
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NP/NV271 - (31 Spline Input) (4r70/75 & E40D/4R100 Transmissions)
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1999-2003 F-250/350/450/550 (not 6.0)
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NP/NV271 - (34 Spline Input) (5R110 Transmission)
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2003.5-2010 F-250/350/450/550 (not 7.3)
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NP/NV273- (34 Spline Input)
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2003.5-2010 F-250/350/450/550 (not 7.3)
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BW1128 / BW4465 Transfer Case
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2011-2020 F-250/350
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Transfer Case
T-case usage varies by transmission. There are additional interchanges beyond what's listed but this breaks down the basics.
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Front Axle
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Notes
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2005-2010
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The 2005-2010 is the most affordable to work with, Super 60, Dually, Fat-boy, etc, all compatible with Timberline components across all 2005+ SD axles.
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2011-early 2012
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Gearing options more limited, same size brakes as 2005-2010
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2012.5-2016
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Larger brakes than 2005-2010, smaller radius arm bushings, more expensive to build
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2017-2024
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2017+ axles require a different track bar, if using this axle, please note when ordering
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Axle Required
Timberline E-series conversions require front axle from 2005-2024 F-250/350/450**
**Axle rebuild parts list is available separately.
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Part
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Notes
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Pitman + Drag link stabilizer shock
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Fox stabilizer shocks recommended on all vans
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Steering stabilizer shock
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Front & Shocks
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Bilstein recommended for standard vans & Fox used on heavy vans (10,000 lb+)
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Hellwig sway bar
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HD front sway bar recommended on all 4x4 van conversions
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These are parts we carry that are recommended on most all builds
Recommended Parts
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Kit / Part
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Notes
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4R75 4x4 conversion parts kit
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Transmission must be removed to convert to 4x4.
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E4OD/4R100 4x4 conversion parts kit
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Standard (non rear-fuel-tank) vans Transmission must be removed to convert to 4x4.
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E4OD/4R100 4x4 bolt up conversion kit
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Bolt-up 4x4 conversion kit for vans with rear fuel tank can be done in-van
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5R110 4x4 bolt up 4x4 conversion kit
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Bolt-up 4x4 conversion kit can be done in-van
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6R140 4x4 conversion parts kit
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Vans with slip-yoke trans output only, transmission must be removed to convert to 4x4
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Abbott electronic ratio adapter (many E40D/4R100)
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Electrical signal modulator required
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C6 mechanical speedo cable
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Extended cable for C6/BW 1356
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Oil Filter Relocation Kit (6.0)
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Oil filter on 6.0 vans must be re-clocked to clear front driveshaft
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Remote parking brake
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Parking brake kit for E-450s with driveshaft parking brake
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Model Specific Options/requirements
There are varying transmission + engine requirements for different vehicles, available in this section.
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Part
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Notes
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Front Driveshaft
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Can be "re-tubed" from stock 99-2010 Superduty
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Rear Driveshaft
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Can be built from some Superduty driveshafts, swap rear flange over from van
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Driveshafts are build to order. Sterling swap & non 138"WB rear shafts are available for purchase only after customer has provided on-ground dimensions.
Driveshafts
If you would like a more detailed build sheet for your specific vehicle, you may fill out the form below and we will send you a link to view one. Please allow 48 hours as these are processed manually. Please note! These sheets are not designed for mobile. If you do not have access to a laptop or desktop they will be of no use to you.
