NV5600 to FSO6406A 6 speed Fuller - Page 158 - Dodge Cummins Diesel Forum
98.5-02 Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect..NO ADVERTISING .

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post #1885 of 1894 (permalink) Old 04-16-2019, 11:27 AM
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Here are a few 6 speed trannies but they don’t say what exactly they are.

https://www.facebook.com/marketplace...8530961800658/

To answer the last post, it worked with my setup.

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post #1886 of 1894 (permalink) Old 05-13-2019, 04:12 PM
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Quote:
Originally Posted by B700 View Post
Paul has set this up to work with the Fuller. Not sure what issues arise with the Spicer. It is 100lbs heavier, a nightmare if you have problems, even as small as the shift lever jumping out of the shift bar in the tower. The gear shift housing is about 6' above the tower..meaning you will need extra room under the dash. The Spicer is a lot longer that the Fuller... drive shaft length will be substantially shortened. I guess the gear shift lever and housing will clear the dash because it will likely rise between the seats.
Another thought is that I was able to find a Fuller factory yoke to fit my Factory F-250 drive shaft Yoke and a compatible U-joint when I did my drive shaft. All the Spicer stuff that I have seen are huge.
Yeah that sounds like a bunch of drama. I do love the idea of another gear and a trans to have my "forever truck" hold up to just about anything. I really wish there was a double overdrive that worked in a pickup. The new automatics get 6-10 gears with a .64:1 overdrive! When can we get a close ratio manual with the same? We know Ram won't give it to us, which is all the more reason I'd love to do it to my truck someday.

2005 3500 QC SB G56 SRW 4x4 Laramie Patriot Blue
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post #1887 of 1894 (permalink) Old 08-10-2019, 01:14 AM
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bumping the thread with an 8406a in a first gen.

anyone happen to have a source for the barring plugs other than the mopar #?
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post #1888 of 1894 (permalink) Old 08-10-2019, 03:28 AM
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post #1889 of 1894 (permalink) Old 08-15-2019, 01:24 PM
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For sale 2006 ram 3500 extended quad cab from texas with 96 12 valve and eaton fuller fs06406a installed in it.... Selling due to fu**** neck n back mint texas ram 3500 dually lone star edition 156,000 orig miles loaded 12 valve p-pump has 130,000 orig miles on it eaton fuller fs6406a has zero 0 miles on just rebuilt done right truck is red with grey power interior clean title i love this truck $14,000.00 o.b.o 313-269-8519 truck is in detroit michigan
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post #1890 of 1894 (permalink) Old 09-12-2019, 02:56 AM Thread Starter
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Hi all.

Just checking in to see how things are going.

Had 26 telephone poles on my 40 ft trailer this week. Grossing over 30K. That FSO6406A is fantastic. No issues whatsoever, quiet, and no gear rattle. Turned radio off just to enjoy the ride. My truck will be 20 yrs old soon and I'll be 75 after the first of the year.

I'm currently building a 1996 12V VE Cummins that I've already sold. It's destined for a 2004 Chev 4500 with a 1000 Allison.

Picked up another Frito Lay truck (free) with a great running 3.9. Plans are to install it in my 1942 Chev G506.

If you're sitting on the fence contemplating if you should bite the bullet and do a trans conversion, go ahead you won't have any regrets.

Only current fix needed on my truck is the turbo is leaking oil ... need to get it replaced.

Pau

Fuller since 2008 2001 Ram 3500, Single cab 12' flatbed, 2" cab lift, Fuller FSO-6406A, 14" Clutch.
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post #1891 of 1894 (permalink) Old 09-12-2019, 05:34 AM
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That's good to hear, I've been looking at this thread for awhile now, but I'm looking more into an older style 13 speed myself, more of a custom factor for my use but also for great towing performance and reliability. (And I used to drive a 13 speed in a Pete so it's second nature to me.) I have just yet to find the exact model I'm looking for or gathered all the conversion parts. I need to do more model number research checking gear ratios and such, I prefer the ol silver knob Fuller 13's with the 3 position side switch.

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post #1892 of 1894 (permalink) Old 09-12-2019, 09:14 AM
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Ill report in also. I did my swap a year ago and still no regrets here also. I ended up adding a tranny cooler on mine because I would tow in 6th gear going 75mph for hours on end. Still enjoy the tranny here as well. I was toying with an idea of getting a Dodge 5500 and swap in an allison tranny. Not sure what size but was thinking a 3000 series. I wanted to do an auto for the wife to be able to drive easier.

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post #1893 of 1894 (permalink) Old 09-12-2019, 11:42 AM Thread Starter
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Dylanss180,

Are you monitoring the oil temp in the tranny and therefore the oil cooler or was it just to add a safety factor? Isn't it nice to get in your truck and not have to worry about what your transmission is going to do.

The Fuller's seem to like hauling and towing and with the Cummins, it's a good match.

I agree that the 2000 and 3000 series Allison trannys are a good option. Even cores are over a $1000 if you can find one. I was watching an auction and two 2500's went for $2750 ea.

Paul

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post #1894 of 1894 (permalink) Old 09-12-2019, 11:52 AM
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I am monitoring it, I have a temp probe in one of the PTO covers. I was towing my RV last week at 75mph in 6th and it was getting warm (220F) and it was around 75 outside. The Eaton Manual says to have it operate 120f above ambient.

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