* 46RH: A 4-speed automatic. This is a likely candidate.
* 47RH: A 4-speed automatic, a later version of the 46RH. Some later-year transmissions of this type *might* bolt up, but you would need to verify compatibility of the output shaft and bellhousing.
* NV3500: A 5-speed manual. This is less common but possible.
You cannot simply rely on the year of the transmission. The critical factors are:
* Bellhousing pattern: The bolt pattern on the transmission that mates to the engine. This is unique to each engine and transmission combination.
* Output shaft: The diameter and spline count of the output shaft that connects to the transfer case. This must match your truck's transfer case.
* Length: The overall physical length of the transmission.
Trying to use a transmission from a different year Dodge Ram, even a similar model year, could lead to problems with fitment, shift linkage, and electrical connectors. You must verify compatibility before purchasing a used transmission.
To find the correct replacement, you should:
1. Identify your engine: This is crucial. The engine code is usually on a sticker under the hood or on a plate in the engine bay.
2. Check a parts catalog: Use a reputable online parts retailer like RockAuto, AutoZone, or Advance Auto Parts. Enter your truck's VIN to get the exact transmission that originally came with your truck. This will be the easiest way to find a direct replacement.
3. Consult a mechanic: A qualified mechanic can identify your transmission and recommend compatible replacements.
Don't guess – incorrect transmission installation can cause serious damage.
