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I originally had to swap these in a week cause was hauling stock trailers for a living,but 6 yrs ago I burned a hole in #6 cyl this time, I tried to do it right.  Fabricated trans mounts using exiting trans mount locations in frame

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Medium duty Freightliner, Volvo, Kenworth or Mack all used these, it uses a Volvo Master/Slave cyls

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Nice, how many speeds is it.

 How did you put a hole and piston, got it too hot. How hot is hot and how long you held it there.

 

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It's a 6 speed with ratio's close to the NV5600, but will handle 840 Lbs ft of torque, hence the 8406, fuller made other 6 speeds, 5406, 6406, I got a lot of my info from another guy I think is in N.M  but I think he had 6406, the clutch is only a single disc rated at 630 lbs ft. Went through 3 count 1,2,3 NV5600's before I did this.

Bad injector is best guess, sloppy maintenance on my part, drove to Des Moines thought it ran smoother than ever before, hooked a trailer and 30 miles later hell broke loose. 

 

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@Blueox01  Are those mid duty transmissions synchronized or unsyncronized like the larger ones, Also did you have to do a body lift to fit in your truck or floorboard modifications  

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4 hours ago, 01cummins4ever said:

@Blueox01  Are those mid duty transmissions synchronized or unsyncronized like the larger ones, Also did you have to do a body lift to fit in your truck or floorboard modifications  

This one is synchronized, had to make a doghouse for it to fit

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9 minutes ago, Dieselfuture said:

If it can handle 840 ft/lb of torque then how much nv5600 can handle, I'm pretty sure I'm close to 1000 on my truck or so it feels that way

Some say 550-600 lbs/ft   I know I snapped the mainshaft pulling a set of doubles against a headwind in Oklahoma  that was NV5600 #1, I shelled 2 more after that. You put this case next to a NV5600 the dodge 6spd looks like a baby.

Edited by Blueox01

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550 ft-lbs is the rated continuous input torque. I’m not sure what the maximum momentary input torque is, but you’re not gonna be using all 1000 ft-lbs all the time, so you’ll probably be below or just at the 550 ft-lb limit. Plus, there’s a factor of safety and an expected life factored into that 550 number, so it’s conservative anyways. 

12 minutes ago, Dieselfuture said:

You probably had the older version with smaller input shaft, 01 and newer I believe is 1 3/8 where before they were 1 1/14 

He has an 01. First year of the 1-3/8” shaft 

Edited by trreed
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Around 675 I think? The 4th gens have 660 ft-lbs stock so it’s gotta be around the 675-700 number. G56 has an aluminum case though and can crack under high power. @TFaoro‘s was behind a 900 hp truck and is fine so it’s all about driving smart. 

Edited by trreed
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Nope, only lurking on the forums from time to time:)

Just been too busy reverse engineering CCD bus in our truck, 

Like today I just figured out which digit of VIN number is responsible for ABS code 84 VIN mismatch ):

  5th VIN Digit.   Vehicle Line
B - Ram - Wagon/Van, ASCII dec  66
C - Ram Cab Chassis/Ram Pickup 4x2,   ASCII dec 67
F - Ram Cab Chassis/Ram Pickup 4x4,  ASCII dec70
G - Dakota/Sport 4x4,  ASCII dec71
L - Dakota/Sport 4x2,  ASCII dec76
R - Durango 4x2,  ASCII dec 82
S - Durango 4x4,  ASCII dec83

 

Thanks to my special ABS fooler:)

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Edited by Chris O.
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