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Muldoon's Performance Transmissions

Muldoon's 48RE ForwardBoss / BackBoss Manual Valve Body

SKU: MPT-FMVB3-R-C
$1,295.00

Fits 1996–2002 Dodge Ram 2500/3500, 2003–2007 Dodge Ram 2500/3500 · 5.9L 12V Cummins / 5.9L 24V Cummins / 5.9L Cummins

All 2 applications
In stock. Ships in 1–2 business days.
187500 Entries150X
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Muldoon's Performance Transmission's Full Manual Valve Body – High-Performance Automatic to Manual Conversion

Upgrade your Dodge Ram, 47RE, or 48RE transmission with the MPT Full Manual Valve Body, engineered for consistent, high-performance manual shifting. Designed for reliability and precision, this valve body is ideal for heavy-duty trucks and high-pressure applications.

Key Features:

  • 2nd Gear Lockup – Locks the torque converter as soon as second gear is manually shifted (lockup switch must be enabled)

  • Locked 4-3 Downshift – Provides predictable downshifts under load

  • No Governor Pressure Solenoids/Transducers Required – Ensures more consistent shifts, even on high-pressure valve bodies

  • Valve Body Pressure Adjustment – Includes detailed instructions and guidelines

  • Tested OD/TCC Solenoid – Fully verified for optimal performance

  • Custom Laser-Cut Separator Plates – Precision-engineered for accurate flow and durability

  • Flat-Sanded Castings – Improves sealing and reliability

  • Ultrasonic Cleaning of Castings – Ensures all components are free of contaminants

  • Thread Inspection and Repair – All threads checked and repaired if necessary

  • Vacuum-Checked Bores – Repaired for excessive wear to maintain optimal performance

  • Static Line Pressure Set – 150 PSI overall, 190 PSI in 4th/TCC lockup; no external line pressure adjustments required

Core Requirements:

  • We accept 47 or 48 valve bodies as cores.

  • If your valve body has been modified with anything other than a Transgo shift kit, please email images of your core.

  • We do NOT accept BD, ATS, or Sonnax valve bodies as cores.

Important Notes:

  • MPT manual valve bodies are not shipped with 48RE rooster combs. If installing in a 48RE, retain your existing rooster comb and swap it when you receive your manual valve body.

  • If you select the “I will send my core in ahead of time” option, MPT will not ship your manual valve body until we receive your acceptable core.

Enhance your truck’s transmission with a high-performance, reliable MPT manual valve body for smooth, precise shifts, and maximum control. Perfect for Dodge Ram 47RE and 48RE owners looking for a professional manual conversion solution.

To view product instructions for this Valve Body, click here.

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If it is not here, call or text the counter. Real people, real answers.

Fitment

  • Will this fit my truck?

    The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.

  • What if I order the wrong part?

    Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.

Shipping

  • When will it ship?

    In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.

  • Why did I only get part of my order?

    We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.

Returns and warranty

  • What is the return policy?

    30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.

  • How do warranty claims work?

    We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.

Paying

  • Can I pay over time?

    Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.

  • What is a core deposit?

    Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.

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Full Send Diesel, Nazareth, PA

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Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.

Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.

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