Unlock the true potential of your vintage Dodge truck with the rare NP445 transmission. Renowned for its rugged durability and synchronized 4-speed performance, this manual transmission is the perfect upgrade for classic Mopar truck enthusiasts. Ideal for restoration projects or as a replacement for worn-out gearboxes in your Dodge D100, D200, D300, W-Series Power Wagon, or early Ramcharger, this NP445 transmission for sale at our site promises to enhance your truck's capabilities while maintaining period-correct authenticity. Don't miss this opportunity to own a piece of Dodge truck history. Contact us now to secure this rare find for your vintage Mopar truck!
The NP445 transmission, a rare gem in vintage Dodge truck inventory, is the perfect powerhouse for your classic Mopar pickup or 4x4. Known for its robust construction, this four-speed manual transmission was built by New Process Gear in the 1960s and 1970s, renowned for durability and reliability in commercial and consumer truck applications. With a cast-iron case and fully synchronized gears (uncommon for the era when many 4-speeds used non-synchronized granny low first gears), this NP445 transmission for sale ensures smooth shifting and long-lasting performance. Ideal for daily driving, light off-road adventures, and moderate towing tasks, the NP445's versatility makes it a sought-after upgrade for classic Dodge truck enthusiasts. Enhance your vintage Mopar truck's capabilities and preserve its authentic character with this exceptional transmission, offering a blend of strength and Mopar heritage.
The NP445 transmission played a crucial role in Dodge's truck lineup during a transformative period in American automotive history (the 1960s and 1970s when Dodge was a major force in the medium-duty truck market with the D-Series and W-Series Power Wagon). Its robust design and versatility made it a favorite among farmers, ranchers, construction workers, and off-road enthusiasts who needed a dependable manual transmission that could handle small block and big block Mopar V8 torque without the complexity of newer overdrive transmissions. Today, the NP445 transmission is a prized component for restorers looking to maintain the authenticity of their vintage Dodge trucks while replacing failed or worn factory transmissions.
Some aftermarket listings claim NP445 fits Ford F-Series, Jeep CJ, and International Harvester Scout trucks. In most cases, this is incorrect for factory applications:
While custom swap projects could theoretically adapt the NP445 to other vehicle platforms with custom bellhousing adapters, this would be a custom fabrication project, not a factory bolt-in installation. Call (240) 301-0095 to discuss your specific application before ordering if you're not installing this in a factory NP445-equipped vintage Dodge truck.
Each of our NP445 transmission for sale here has been thoroughly inspected and tested. While these are used transmissions from vintage Dodge trucks, we ensure they meet our standards for functionality and reliability:
To keep your NP445 transmission performing at its best:
1. Use high-quality SAE 90W GL-4 gear oil (the NP445 specification, not modern GL-5 gear oil which can damage synchros over time)
2. Regularly check for leaks and address them promptly (top cover gasket, input shaft seal, output shaft seal)
3. Follow recommended service intervals for fluid replacement (every 30,000 to 50,000 miles depending on use)
4. Consider upgrading to synthetic GL-4 gear oil for improved performance and longevity in extreme climates
5. Inspect U-joints and driveshaft that mate to the 35-spline output yoke regularly
6. Replace clutch as a complete kit (pressure plate, disc, throw-out bearing, pilot bearing) whenever the transmission is out for service
Whether you're restoring a classic Dodge D100 to its former glory or seeking a reliable transmission for a custom Mopar build, our NP445 transmission for sale is the perfect choice. With its rarity, durability, and synchronized performance capabilities, the NP445 is more than just a transmission, it's a piece of Mopar truck history. Don't miss this opportunity to own a piece of Dodge truck heritage. Browse our selection of NP445 transmissions and take the first step towards powering your vintage truck dreams!
| Vehicle | Compatibility |
|---|---|
| Dodge D-Series (1960s-1970s) | D100, D200, D300 pickups and chassis cabs |
| Dodge W-Series Power Wagon (1960s-1970s) | W100, W200, W300 4x4 trucks |
| Dodge Ramcharger | Early first generation (1974-1980) some configurations |
| Mopar Engine Compatibility | 318 small block, 360 small block, 383 big block, 400 big block, 440 big block, 225 slant six |
| Case Length | 10.75 inches |
|---|---|
| Fluid Capacity | 3 quarts |
| Fluid Type | SAE 90W gear oil (GL-4 specification) or equivalent |
| Gear Ratios | 1st: 3.09 | 2nd: 1.75 | 3rd: 1.20 | 4th: 1.00 (direct drive) | Reverse: 3.34 |
| Input Shaft | 10 splines | 1.125 inches diameter |
| Output Shaft | 1.375 inches diameter | 35 splines |
| Overall Length | 11.87 inches |
| Torque Rating | 300 lb-ft |
| Weight | 145 lbs |
| Type | Medium-Duty Manual Transmission |
| Model | NP445 |
| Maker | New Process Gear (NPG | now part of Magna Powertrain) |
| Speeds | 4 forward speeds with synchronized engagement | direct drive 4th |
| Case Material | Cast iron |
| Compatibility | 1965 NP445 Transmission (covers 1960s-1970s production era) |
| Price | 599.00 |
Contact (240) 301-0095 within 15 days.
