Opti-Rate Transit Leaf Spring Single W/ Sliders / Hardware Assembled Ford Transit-350 HD/Transit-350/Transit-250/Transit-150 (2015-Up) - Van Compass - 306501

Our Opti-Rate spring pack represents the culmination of over a decade spent tuning leaf springs for various ride heights, payloads, applications and uses. Built out vans often suffer from harsh bottom out due to the constant weight being carried, and will drive very poorly overall.

Previously, leaf springs had to be ordered to a specific weight range and lift height, which meant either guessing or waiting until completion to order parts. The Opti-Rate spring gives new flexibility in tuning both your spring rate and ride height, all in one package.

With an industry first tunable preload system, we've developed a spring that truly is a 'one size fits all' solution, perfect for van builders, kit installers, and Diy'ers building their vans step by step on their own. The Opti-Rate spring is made up of 3 distinct parts: the main springs in the primary stage, a 3-leaf secondary stage, and the Adjustable Preload Spacers (Aps).

The Adjustable Preload Spacers are machined blocks with stackable Delrin glide pads that preload the secondary stage into the main stage. The springs are designed in a way that there is a gap between the 2 stages, perfect for adding our billet machined Aps.

When the main spring is weighted, the Aps are able to engage the primary and secondary stages together. Changing the preload spacers requires little more than a floor jack, socket wrench, and a mallet; the springs can stay in the vehicle.

For light vans, or customers wanting the softest ride, no Aps is needed and the spring works in its softest configuration. Middle weight vans, or customers wanting a firmer rear spring rate and increased ride height can add the Aps with 1 Delrin spacer pad.

Heavy vans, or customers wanting the maximum spring rate and ride height can install the Aps with 2 Delrin spacer pads.

Associated Comments:

• Note: Vans equipped with a factory rear sway bar require our extended rear sway bar links, part number 3067.

Van Compass Opti-Rate Transit Leaf Spring, Single W/ Sliders / Hardware, Assembled

Details:

• Grade Type: Performance
• Hardware Included: No
• Recommended Shop Labor Time: 1.5 Hours
• Color: Black
• Finish: Painted
• Spring Rate Type: Variable
• Suspension Grade Type: Heavy Duty
• Material: Steel
• Bushing Color: Black
• Bushings Included: Yes
• Axle Modification Needed: No
• End 1 Attachment Type: Up Turned Eye
• End 2 Attachment Type: Up Turned Eye
• Helper Spring: Yes
• Axle Spring Perches Included: No
• Long Travel Shackles Included: No
• Modification Required: No
• U-Bolt Spring Plates Included: No
• Add-On Part: 3067 - Extended Sway Bar Links - Transit 2015+ (use With Topo 2 Inch Rear Lift Kit)
• Warranty: 60 Days-Finish Limited Lifetime-Structural

These require truck freight to ship, if you have a commercial address this will help save on the shipping costs.

• 2015 Ford Transit-150 3.2L DIESEL
• 2015 Ford Transit-150 3.5L GAS
• 2015 Ford Transit-150 3.7L CNG
• 2015 Ford Transit-150 3.7L FLEX
• 2015 Ford Transit-150 3.7L LPG
• 2015 Ford Transit-250 3.2L DIESEL
• 2015 Ford Transit-250 3.5L GAS
• 2015 Ford Transit-250 3.7L CNG
• 2015 Ford Transit-250 3.7L FLEX
• 2015 Ford Transit-250 3.7L LPG
• 2015 Ford Transit-350 HD 3.2L DIESEL
• 2015 Ford Transit-350 HD 3.5L GAS
• 2015 Ford Transit-350 HD 3.7L CNG
• 2015 Ford Transit-350 HD 3.7L FLEX
• 2015 Ford Transit-350 HD 3.7L LPG
• 2015 Ford Transit-350 3.2L DIESEL
• 2015 Ford Transit-350 3.5L GAS
• 2015 Ford Transit-350 3.7L CNG
• 2015 Ford Transit-350 3.7L FLEX
• 2015 Ford Transit-350 3.7L LPG
• 2016 Ford Transit-150 3.2L DIESEL
• 2016 Ford Transit-150 3.5L GAS
• 2016 Ford Transit-150 3.7L CNG
• 2016 Ford Transit-150 3.7L FLEX
• 2016 Ford Transit-150 3.7L LPG
• 2016 Ford Transit-250 3.2L DIESEL
• 2016 Ford Transit-250 3.5L GAS
• 2016 Ford Transit-250 3.7L CNG
• 2016 Ford Transit-250 3.7L FLEX
• 2016 Ford Transit-250 3.7L LPG
• 2016 Ford Transit-350 HD 3.2L DIESEL
• 2016 Ford Transit-350 HD 3.5L GAS
• 2016 Ford Transit-350 HD 3.7L CNG
• 2016 Ford Transit-350 HD 3.7L FLEX
• 2016 Ford Transit-350 HD 3.7L LPG
• 2016 Ford Transit-350 3.2L DIESEL
• 2016 Ford Transit-350 3.5L GAS
• 2016 Ford Transit-350 3.7L CNG
• 2016 Ford Transit-350 3.7L FLEX
• 2016 Ford Transit-350 3.7L LPG
• 2017 Ford Transit-150 3.2L DIESEL
• 2017 Ford Transit-150 3.5L GAS
• 2017 Ford Transit-150 3.7L CNG
• 2017 Ford Transit-150 3.7L FLEX
• 2017 Ford Transit-150 3.7L LPG
• 2017 Ford Transit-250 3.2L DIESEL
• 2017 Ford Transit-250 3.5L GAS
• 2017 Ford Transit-250 3.7L CNG
• 2017 Ford Transit-250 3.7L FLEX
• 2017 Ford Transit-250 3.7L LPG
• 2017 Ford Transit-350 HD 3.2L DIESEL
• 2017 Ford Transit-350 HD 3.5L GAS
• 2017 Ford Transit-350 HD 3.7L CNG
• 2017 Ford Transit-350 HD 3.7L FLEX
• 2017 Ford Transit-350 HD 3.7L LPG
• 2017 Ford Transit-350 3.2L DIESEL
• 2017 Ford Transit-350 3.5L GAS
• 2017 Ford Transit-350 3.7L CNG
• 2017 Ford Transit-350 3.7L FLEX
• 2017 Ford Transit-350 3.7L LPG
• 2018 Ford Transit-150 3.2L DIESEL
• 2018 Ford Transit-150 3.5L GAS
• 2018 Ford Transit-150 3.7L CNG
• 2018 Ford Transit-150 3.7L FLEX
• 2018 Ford Transit-150 3.7L GAS
• 2018 Ford Transit-150 3.7L LPG
• 2018 Ford Transit-250 3.2L DIESEL
• 2018 Ford Transit-250 3.5L GAS
• 2018 Ford Transit-250 3.7L CNG
• 2018 Ford Transit-250 3.7L FLEX
• 2018 Ford Transit-250 3.7L GAS
• 2018 Ford Transit-250 3.7L LPG
• 2018 Ford Transit-350 HD 3.2L DIESEL
• 2018 Ford Transit-350 HD 3.5L GAS
• 2018 Ford Transit-350 HD 3.7L CNG
• 2018 Ford Transit-350 HD 3.7L FLEX
• 2018 Ford Transit-350 HD 3.7L GAS
• 2018 Ford Transit-350 HD 3.7L LPG
• 2018 Ford Transit-350 3.2L DIESEL
• 2018 Ford Transit-350 3.5L GAS
• 2018 Ford Transit-350 3.7L CNG
• 2018 Ford Transit-350 3.7L FLEX
• 2018 Ford Transit-350 3.7L GAS
• 2018 Ford Transit-350 3.7L LPG
• 2019 Ford Transit-150 3.2L DIESEL
• 2019 Ford Transit-150 3.5L GAS
• 2019 Ford Transit-150 3.7L CNG
• 2019 Ford Transit-150 3.7L FLEX
• 2019 Ford Transit-150 3.7L GAS
• 2019 Ford Transit-150 3.7L LPG
• 2019 Ford Transit-250 3.2L DIESEL
• 2019 Ford Transit-250 3.5L GAS
• 2019 Ford Transit-250 3.7L CNG
• 2019 Ford Transit-250 3.7L FLEX
• 2019 Ford Transit-250 3.7L GAS
• 2019 Ford Transit-250 3.7L LPG
• 2019 Ford Transit-350 HD 3.2L DIESEL
• 2019 Ford Transit-350 HD 3.5L GAS
• 2019 Ford Transit-350 HD 3.7L CNG
• 2019 Ford Transit-350 HD 3.7L FLEX
• 2019 Ford Transit-350 HD 3.7L GAS
• 2019 Ford Transit-350 HD 3.7L LPG
• 2019 Ford Transit-350 3.2L DIESEL
• 2019 Ford Transit-350 3.5L GAS
• 2019 Ford Transit-350 3.7L CNG
• 2019 Ford Transit-350 3.7L FLEX
• 2019 Ford Transit-350 3.7L GAS
• 2019 Ford Transit-350 3.7L LPG
• 2020 Ford Transit-150 3.5L FLEX
• 2020 Ford Transit-150 3.5L GAS
• 2020 Ford Transit-250 3.5L FLEX
• 2020 Ford Transit-250 3.5L GAS
• 2020 Ford Transit-350 HD 3.5L FLEX
• 2020 Ford Transit-350 HD 3.5L GAS
• 2020 Ford Transit-350 3.5L FLEX
• 2020 Ford Transit-350 3.5L GAS
• 2021 Ford Transit-150 3.5L FLEX
• 2021 Ford Transit-150 3.5L GAS
• 2021 Ford Transit-250 3.5L FLEX
• 2021 Ford Transit-250 3.5L GAS
• 2021 Ford Transit-350 HD 3.5L FLEX
• 2021 Ford Transit-350 HD 3.5L GAS
• 2021 Ford Transit-350 3.5L FLEX
• 2021 Ford Transit-350 3.5L GAS
• 2022 Ford Transit-150 3.5L FLEX
• 2022 Ford Transit-150 3.5L GAS
• 2022 Ford Transit-250 3.5L FLEX
• 2022 Ford Transit-250 3.5L GAS
• 2022 Ford Transit-350 HD 3.5L FLEX
• 2022 Ford Transit-350 HD 3.5L GAS
• 2022 Ford Transit-350 3.5L FLEX
• 2022 Ford Transit-350 3.5L GAS
• 2023 Ford Transit-150 3.5L FLEX
• 2023 Ford Transit-150 3.5L GAS
• 2023 Ford Transit-250 3.5L FLEX
• 2023 Ford Transit-250 3.5L GAS
• 2023 Ford Transit-350 HD 3.5L FLEX
• 2023 Ford Transit-350 HD 3.5L GAS
• 2023 Ford Transit-350 3.5L FLEX
• 2023 Ford Transit-350 3.5L GAS
• 2024 Ford Transit-150 3.5L FLEX
• 2024 Ford Transit-150 3.5L GAS
• 2024 Ford Transit-250 3.5L FLEX
• 2024 Ford Transit-250 3.5L GAS
• 2024 Ford Transit-350 HD 3.5L FLEX
• 2024 Ford Transit-350 HD 3.5L GAS
• 2024 Ford Transit-350 3.5L FLEX
• 2024 Ford Transit-350 3.5L GAS
• 2025 Ford Transit-150 3.5L FLEX
• 2025 Ford Transit-150 3.5L GAS
• 2025 Ford Transit-250 3.5L FLEX
• 2025 Ford Transit-250 3.5L GAS
• 2025 Ford Transit-350 HD 3.5L FLEX
• 2025 Ford Transit-350 HD 3.5L GAS
• 2025 Ford Transit-350 3.5L FLEX
• 2025 Ford Transit-350 3.5L GAS
• 2026 Ford Transit-150 3.5L FLEX
• 2026 Ford Transit-150 3.5L GAS
• 2026 Ford Transit-250 3.5L FLEX
• 2026 Ford Transit-250 3.5L GAS
• 2026 Ford Transit-350 HD 3.5L FLEX
• 2026 Ford Transit-350 HD 3.5L GAS
• 2026 Ford Transit-350 3.5L FLEX
• 2026 Ford Transit-350 3.5L GAS