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  1. General 6.7 Discussion (2011-2016)
    My 2012 F350 LWB SRW has everything deleted, with mini-maxx, and other performance mods to increase both efficiency and performance. Most recently I replaced the primary cooling system thermostat with the SPE 175'-180' thermostat. It is my understanding that the 2 thermostats in the secondary...
  2. 6.7 Tranny Problems (2011-2016)
    I have a 2013 f550 2wd with the 6r140… I purschased the truck with a hard downshift from 5 to 4 others were fine .. got the truck tuned .. changed the filter and fluid added the bd high pressure solenoid .. and now when it’s cold it shifts fine but when hot goes to 5th with a shudder in first...
  3. 6.7 Tranny Problems (2011-2016)
    I recently bought a 2012 F350, 278k miles when I bought it. The first 1500-2000 miles I had no issues. I haul a 36ft horse trailer all over, I need to get to the bottom of this. Truck is tuned and deleted. It is now downshifting HARD 2-1 and sometimes downshifts hard from 4-3 and upshifts hard...
  4. 6.7 Drivetrain Problems (2011-2016)
    So..... My transmission is dead (6r140 no PTO 4x4)... started with some overheating (236 F), then started hearing the clutches slipping (sounded like an electric motor under the truck), and then finally lost all gears while on my way home and had to have it pulled to a safe space...
  5. 6.7 Problems Forum (2011-2016)
    Hey guys I've got a 2011 F250 6.7 Lariat, 165k. I bought this truck at 130k for 33k$[sitting on 35 ,13.5 x 20's with a 2" lift in the front, original turbo, i replaced shocks with some bilsteins, did the cab mounts with the new s&b mounts, wow are those nice, fully deleted, 5" straight pipe...
  6. 6.7 Tranny Problems (2011-2016)
    My 2015 F-350 6.7 6R140 Transmission went out. I have a 2011 F-350 trans with transfer case available. Dealer said the part numbers between the two are different. 2011 PN# CC3Z7000D and 2015 PN# FC3Z7000P. do you guys know wether or not the 2011 transmission will work in my 2015?
  7. General 6.7 Discussion (2011-2016)
    Hello all, I've been doing a bunch of research and just have a couple questions for my next steps to make sure I'm on the right page. I have a 2012 f250 6.7l deleted and tuned through EZlynk with proven tunes. Truck has 167k miles. I get very harsh upshifts 1-2 and a flare between 2-3 and hard...
  8. General 6.7 Discussion (2017-2019)
    New to this forum. Also new to diesels. Bought a used 2017 F250 Lariat that I love. However, has anyone replaced (or even moved) the smaller transmission cooler just behind the bumper? It is in my way for mounting my winch. I need to either move it or replace it or something? A buddy of mine...
  9. 6.7 Performance Parts Discussion (2011-2016)
    has anyone found a torque converter lock up switch for these 6R 140 transmissions? i cant seem to find one anywhere, as well as a valve body / shift kit. really interested in a little trans work but i keep coming up short when looking. thanks for any help
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