* Local transmission shops: Many transmission shops offer rebuilt transmissions, and some may even specialize in rebuilding specific types of transmissions, such as the one in your truck. This is a great option if you want a high-quality, reliable rebuilt transmission, but it can also be the most expensive option.
* Online retailers: Several online retailers sell rebuilt manual transmissions, and you may be able to find a good deal on one if you're willing to do some research. Be sure to read the reviews of any online retailer before you make a purchase, and make sure the retailer offers a warranty on their transmissions.
* Salvage yards: Salvage yards are a great place to find used parts, including manual transmissions. However, it's important to note that used transmissions may not be as reliable as rebuilt transmissions, and you'll need to be sure the transmission you're buying is in good condition before you install it.
* Auto recyclers: Similar to salvage yards, auto recyclers may also have used manual transmissions available. Again, it's important to inspect any used transmission thoroughly before purchasing.