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Any transmission issues?

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Old 05-22-2018, 06:41 AM
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Any transmission issues?

Am I correct in interpreting that the F-250 and F-350 use different transmissions? Does the diesel use the same transmission in each chassis?

The real question: Have there been any transmission issues in the F-250 6.2L? Apparently it's a slightly lighter duty transmission?
 
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Old 05-22-2018, 06:53 AM
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Nope. Just the 4th gear shaking bit, but that's for the diesel transmission, and extremely rare. Transmission is good to go. Best 3/4 ton trans out there, right now.

It's a lighter duty engine, with different transmission needs than the diesel. The 6.2L is noticeably better with the G trans compared to my 2015 6.2L work truck.
 
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Old 05-22-2018, 09:25 AM
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There are a few guys with the gas F-250 complaining about a driveline clunk. It has yet to be determined if the problem is in the transmission or not.
 
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Old 05-22-2018, 09:25 AM
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The F350 6.2 has the same trans as the diesel.
 
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Old 05-22-2018, 09:31 AM
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The Diesel and gas tranny are essentially the same transmission. I believe more shims and maybe friction plates. But both are 6r140. There is a thread with many of the TSBs for the ‘17 and some ‘18. I can recall a recall for a weak plate for the park assembly on the 17. There have been many that have a “normal ticking noise in the 6.2” and as just stated above, a fluttering/ticking/chattering noise heard in 4th or 6th that is apparently related to shift cable that is to short and causes sound transmission up into the cab. (Still waiting on a TSB)
 
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Old 05-22-2018, 09:50 AM
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Originally Posted by Bill_The_PA View Post
The Diesel and gas tranny are essentially the same transmission. I believe more shims and maybe friction plates. But both are 6r140. There is a thread with many of the TSBs for the ‘17 and some ‘18. I can recall a recall for a weak plate for the park assembly on the 17. There have been many that have a “normal ticking noise in the 6.2” and as just stated above, a fluttering/ticking/chattering noise heard in 4th or 6th that is apparently related to shift cable that is to short and causes sound transmission up into the cab. (Still waiting on a TSB)
This is not 100% accurate. The 250 Gas has the Torque-shift G transmission. The diesel 250 and ALL 350s have the 6R140.
 
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Old 05-22-2018, 10:02 AM
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Originally Posted by JeepPuller View Post
This is not 100% accurate. The 250 Gas has the Torque-shift G transmission. The diesel 250 and ALL 350s have the 6R140.
that’s y I said essentially
 
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Old 05-22-2018, 10:06 AM
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Originally Posted by Bill_The_PA View Post

that’s y I said essentially
touche'
 
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Old 05-22-2018, 10:17 AM
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Originally Posted by JeepPuller View Post
touche'
not really. Thanks for your input though
 
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Old 05-22-2018, 10:18 AM
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The G trans is not the same as the 6r140. Completely different case, much smaller.
 
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Old 05-22-2018, 10:47 AM
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Originally Posted by tseekins View Post
Am I correct in interpreting that the F-250 and F-350 use different transmissions? Does the diesel use the same transmission in each chassis?

The real question: Have there been any transmission issues in the F-250 6.2L? Apparently it's a slightly lighter duty transmission?
F-250 gas engine: 6R100, aka TorqShift-G, aka heavy-duty 6R80 F-150 transmission...itself a licensed copy of a German-made ZF6HP26 automatic transmission used in many vehicles with an excellent reputation.

F-250 diesel, F350 gas or diesel, F-450, F-550, F-650, F-750: 6R140, aka TorqShift 6. There are some variations in this transmission when used in a 350 gas truck, or a 650 / 750 truck.

Originally Posted by Buliwyf View Post
The 6.2L is noticeably better with the G trans compared to my 2015 6.2L work truck.
Is is possible it just seems that way because your 2017 engine makes 25lb-ft more torque and at 700RPM sooner, and in a lighter truck when compared to your 2015 work truck?
 
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Old 05-22-2018, 10:59 AM
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Possibly. But it's more like an F150 shift strategy than the '15 F350. (when not in tow/haul mode)
 
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Old 05-22-2018, 12:23 PM
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Ok. I guess I’m way off here and apologizing in advance but aren’t we talking about the ‘17-‘18 SDs (6.2 & 6.7) and they have the 6r140? They just shift different with the diesels having more shims and friction plates? Your saying that the gas doesn’t. The 6.7 250-350 have the same Powertrain and only differ in suspension slightly bigger diff housing and bigger bed blocks??
 
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Old 05-22-2018, 12:56 PM
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The 17+ F250 6.2 has the Torqshift G. The 17+ F250 6.7 and all F350s (both the 6.2 and 6.7), have the 6R140.
 
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Old 05-22-2018, 02:02 PM
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Originally Posted by Buliwyf View Post
Possibly. But it's more like an F150 shift strategy than the '15 F350. (when not in tow/haul mode)
I need to drive one when I get a chance just because I'm curious. The first 2017 I drove was a regular cab 6.2L but it was a 350, so it had the other trans. Oddly it didn't start well or even run that smoothly and the body panels didn't line up well, but it was a super-early build. I actually thought about buying it for a work truck; it was an XLT so nicer than I needed for its purpose.
 

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