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Automotive Your Way

John Wood E40D Valve Body (90-95)

This item requires Vehicle Fitment, please select Vehicle first!
OR if you know the Part Number you need, select from Options below.
Part Number: JWVB-E40D
Availability: In Stock
Price: $269.95
* * * * * STRICTLY DIESEL EXCLUSIVE!!! * * * * *



This Accumulator Body (commonly called the "John Wood Valve Body) is built by John Wood of John Wood Automotive, one of the premier E40D/4R100 builders in the country. It is configured to offer improvements in shift quality without being harsh and without causing the "reverse delay" found in some shift kit configurations. This valve body also works GREAT with most aftermarket transmission tuning due to not being overly aggressive in the shift firmness.

New JWVBs are built from your returned cores, which are disassembled, thoroughly cleaned and machined flat before being upgraded with:
• John Wood Exclusive Custom Capacity Valves *
• John Wood Exclusive Custom Line Modulator Valve *
• John Wood Spec'd Accumulator Spring Sets
* John Wood Capacity Valves and Line Modulator Valves are true, "in-house", custom machined parts.

Installation of this valve body will result in:
• Quicker, more Positive Shifts
• Elimination of "Shift Flare"
• Reduced Temperatures
• Reduced Clutch Slippage
• Reduced Clutch Wear

IMPORTANT IDENTIFICATION NOTES: Look closely at the last image above for reference.
For 90-95 vehicles , if the blue highlighted pad on your current accumulator body has a machined slot, this IS the correct replacement for your vehicle.

If the blue highlighted area on your current accumulator body DOES NOT have a machined slot, you need the 96-03 4R100 version of the JWVB. This may be the case if your vehicle has ever had its transmission replaced with an entirely different unit. The accumulator body must be matched to the rest of the transmission components, DO NOT install a different accumulator body if the area highlighted in blue doesn't match (slot, or no slot)!

INSTALLATION NOTE: Installation of this valve body will require the use of an IN/LB torque wrench. If you don't have access to the correct tool, we recommend having a qualified mechanic perform the installation.

We HIGHLY RECOMMEND installation of a new transmission filter during the installation of the valve body. We can supply you with a quality filter if you don't want to supply your own. Just select the option to "Add 4R100 / E40D Filter" when you are adding the valve body to your cart.

We have also included an option for us to supply you with a pre-paid (at a discounted rate) UPS or FedEx return label for your valve body core. This will allow you to simply seal your clean valve body core and core return form back up in the same box we sent you, cover the old label with the new one and give it to any UPS or FedEx driver or drop-off without having to hassle with shipping details.

A $150 refundable core charge will be automatically added to the purchase of this product.

Cores MUST be returned within 30 days of product delivery (as verified by UPS or FedEx tracking information) to receive the full core refund. Cores received after 30 days will receive a pro-rated refund. Please remember that the valve body you are ordering was once a core that someone else was kind enough to considerate of the next customer and return your core as quickly as you can! We NEED your core as much as you NEED your money back!

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Frequently Asked Questions

John Wood E40D Valve Body (90-95) fits the following vehicle(s):

  • 1995 Ford E250/350 Van 7.3L
  • 1994 Ford F250/350 OBS 7.3L
  • 1995 Ford F250/350 OBS 7.3L