In Texas, my wife and I are getting a new, rebuilt transmission from a company called Aus-Tex. We are getting a stage 2 rated for 600-650 HP. She has a 2018 F350 SRW with a 6" lift and deleted with a tune ranging from 30-180 HP. The tranny started slipping on us, so we just decided to go with a rebuild. The unit cost us about $7700 plus tax, which includes a new oil cooler. They recommended a regear (3.73 or 4.10's) for front and rear diffs due to the strain of those 37s and extra HP. We decided not to. Initially, we were going to get stage 1.5, which comes with the following things: but due to not regearing, we went with a more beefier tranny package for now. These guys are great. They took our down payment and started the rebuild on a case they had in stock. I'll try and get them to send me the stage 2 specs.

Stage 1.5

✅ 6R140 performace unit built with all new OEM Seals, gaskets and filter.

✅ Thermal valve modification for full time cooling and lubrication

✅ OEM and Durabond bushings and new pump bearing installed with press (no 🔨)

✅ new OEM input shaft, with lathe modified piston kit for added OVERDRIVE CLUTCH CAPACITY (4-5-6 gear)

✅ upgraded direct clutch with higher capacity (3-5-R gear)

✅ Lathe resurfaced pump for exact pump gear tolerances

✅ EXEDY and Borg warmer clutches with fat steels , no thin steels used, this eliminates warping .

✅ premium valve body with proprietary modifications, sonnax upgrades and brand new OEM SOLENOIDS

✅ DEEP HIGH CAPACITY aluminum oil pan, reduces temperatures and strengthens case, acts like a girdle.

✅ new temperature sensor and Internal speed sensors.

✅ new heavy duty UPDATED torque converter with dual clutch linings

✅🛻 rated for 550HP

🇺🇸all of our units come with a 🇺🇸flag and serial # beware of some shops selling copy cats😼

 

Here are the specs for the Stage 2. The price did include a new oil cooler rated for this upgraded performance tranny. This was a $550 value. Just to be transparent, this truck is used a work truck on substation/high voltage construction sites so its not heavily used.

✅ DESIGNED FOR TUNED HIGH TORQUE 6.7 DIESEL TRUCKS, RATED FOR 650 HP MAX 🛻 F250, F350

✅ 6R140 performace unit built with all new OEM Seals, gaskets and filter.

✅ Thermal valve modification for full time cooling 🥶 and lubrication

✅ OEM and Durabond bushings and new pump bearing installed with press (no 🔨)

✅ new OEM input shaft, with lathe modified piston kit for added OVERDRIVE CLUTCH CAPACITY

✅ Lathe resurfaced pump for exact pump rotor tolerances

✅ HIGH CAPACITY FAT CLUTCH PACKS, made with machined pressure plates and drums with fat steels , no thin steels used, this eliminates warping.

✅ premium valve body proprietary modifications with brand new OEM SOLENOIDS

✅ DEEP HIGH CAPACITY aluminum oil pan, reduces temperatures and strengthens case, acts like a girdle.

✅ new temperature sensor and Internal speed sensors.

✅ new heavy duty UPDATED torque converter with slight lower stall.

✅BILLET INTERMIDIATE SHAFT

 

Suncoast, warren, revmax are some of the best. Goerend torque converters are good, just a tad cheaper than Suncoast converters. Maryland Performance does 6r140's as well. Not sure about the BD or ATS units.

This is a Warren Input/overdrive hub fully welded and stroked out to fit 10 clutches

 

Thats pretty!

 

Looks like Warren Diesel is the ticket, they can build one up and ship it pretty quickly where 5 other places were 2-3 weeks just to get one built. Thanks for the feedback!