Ram 3500 High Output parts.

pairs with: Tune, Engine Protection

why this one: The most expensive package on this platform at 10,119.99 dollars, and what the money actually buys is choice: ATS lets you specify either their TripleLok or their Five Star converter as part of the build instead of shipping one combination and calling it done. ATS is also the clearest source on fitment, stating plainly that the AS69RC is the High Output engine transmission and is exclusive to the 3500 pickup. If you do not need to pick the converter, the BD packages start 3,619.99 dollars lower.

pairs with: Engine Protection

why this one: Factory stall speed is the reason to look at this one. A higher stall converter makes a heavy truck feel lazy off the line and dumps more heat into the transmission fluid when you tow, and ATS deliberately did not go there. It is 205 dollars more than the ATS Heavy Duty converter, and ATS does not publish a side by side showing what the Five Star clutch drive gains you, so ask them before you pay the difference.

pairs with: Engine Protection

why this one: The cheapest ATS converter for this transmission at 1,754.99 dollars, and the one ATS actually shows available to add to cart rather than listed without a stock status. It gives up the Five Star Viskus clutch drive and mixed flow stator of the pricier ATS unit. ATS does not say what that costs you in holding capacity, so if the truck is tuned and pulling hard, either the Five Star or one of the SunCoast billet converters is the safer place to spend.

pairs with: Tune, Engine Protection

why this one: The least expensive of the three BD packages for this transmission at 6,500 dollars, and the one to look at if your truck is close to stock and you just want the K2 hub weakness dealt with before it bites. It is still a whole transmission, so you are paying transmission money plus a day of shop labor for a part that makes no power on its own.

pairs with: Tune, Engine Protection

why this one: BD sells three AS69RC packages side by side at 6,500, 8,500 and 9,500 dollars and this is the middle one. Honest caveat before you spend the money: the BD page for this package lists the same nitride billet K2 hub fix as the cheaper RoadMaster and does not say what the extra 2,000 dollars buys, so call BD and get the build sheet rather than assuming it is simply a stronger unit.

pairs with: Tune, Engine Protection

why this one: This is the only one of the three BD packages whose page states an actual internal change beyond the hub, and added clutch friction is the change that matters if the truck is already tuned and working hard. It is also the most expensive at 9,500 dollars, so if your truck is stock you are buying holding capacity you will never reach.

pairs with: Engine Protection

why this one: Against the PPE pan for the same transmission this is the more expensive of the two at 475.95 dollars, and what you get for it is a heavier casting meant to stiffen the case plus an OEM-style magnetic drain plug so future fluid changes do not mean dropping the pan again. The downside is that BD does not publish how much extra fluid it holds, which PPE does, so if you want that number before you buy, buy the PPE.

pairs with: Engine Protection

why this one: The cheap maintenance item on this list at 45.95 dollars, and realistically the one part here that every High Output owner buys more than once. It is worth ordering before the truck is on the lift rather than after. Be clear about what it is not: it adds nothing and fixes nothing, it just keeps the transmission you already have clean.

pairs with: Engine Protection

why this one: PPE publishes the number BD does not: four extra quarts. It is also the cheaper of the two deep pans on this platform at 329.99 dollars. Two things to check before ordering: it comes in raw, brushed and black, and PPE lists some of those finishes as temporarily out of stock, so confirm the one you want is actually available.

pairs with: Engine Protection

why this one: Order it with a pan swap or a fluid service so you are not stuck with the truck on a lift waiting on a 32.99 dollar part. It is a consumable, not an upgrade, and PPE currently lists it as temporarily out of stock, which is exactly why it is worth having on the shelf before you start the job.

pairs with: Engine Protection

why this one: The billet stator is what separates this from the cheaper SunCoast Category 1 converter, and it is the one to buy if you tow heavy often rather than occasionally. At 2,050 dollars it is 155 dollars more than the Category 1. The real cost is not the part though: a converter swap means the transmission comes out, so do it at the same time as any other transmission work instead of as a standalone job.

pairs with: Engine Protection

why this one: This is the cheaper way into a billet Aisin converter at 1,895 dollars, 155 dollars under the SunCoast SC-AS69, and it carries the same three year unlimited mileage warranty. Two things to know before you order. SunCoast states on the listing that it is not legal for sale or use in California. And because the transmission still has to come out either way, the labor bill is identical to the more expensive converter, so the 155 dollars you save is a small share of what the job costs.

pairs with: Wheel, Tire

why this one: ReadyLift built this specifically for the 3500 High Output Cummins package (4.5in front / 3in rear blocks), matching the heavier front-end hardware that comes with the HO engine/Aisin transmission combo.