7.3 to eaton 6, the right clutch

Tgould

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i have a 1994 F350 CC that i'm working on putting a 7.3 PSD with eaton fuller six behind it. Problem i have is that the eaton has a 1-3/4" input shaft and every clutch i find that i know will fit the engine uses a 1-1/2" disc and a lot of commercial truck sites can't search by vehicle. Does anyone know if there is a clutch combination that will work? Are a lot of med. or heavy duty clutch assemblies the same regardless of make of the truck or am i stuck with having to change the input shaft?
 

Tgould

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that's what i'm trying to do but i cant find a t444e clutch that fits 1.75" input and i have not way of knowing if one i buy online that will fit the trans will bolt to the motor. the only thing i do know it that this trans was offered behind this engine, and Eaton makes them with both 1.5 and 1.75 inputs but i don't think IH ever used the bigger input.
 

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I would be interested to see what you find also. I currently have a spicer 5 speed with a 1.5 input but want to swap in another spicer overdrive with a 1.75 input shaft. Not sure how to find the information.

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Tgould

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I would be interested to see what you find also. I currently have a spicer 5 speed with a 1.5 input but want to swap in another spicer overdrive with a 1.75 input shaft. Not sure how to find the information.

i'd see if you can get a 1.5 input for to start cause i'm not finding much if anything in way of 1.75 clutches for this engine
 

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I am actually running a medium duty clutch set up with my dt360. I am just running into the same problem that I can't seem to search individual parts and the local IH dealer is friendly but wants a serial number or part number to go off of.

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compressionignitionrules

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we had a customer with many 2001 -2003 IH T444E powered trucks and they were all 6spd eatons and 7 spd spicer trans. in them and all single axle van bodies. trucks are gone but they were a large clutch on the trucks. they had one of their T444E trucks with a 5spd eaton but it was a short little flatbed on it and smaller GVW. definitely needed more than 5gears :rolleyes: if we were still seeing those trucks I could do some research on them but they all upgraded to freightliner business class trucks while I was away for 2yrs.
 

Tgould

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after digging around different parts supplies it seem 1.5" is the biggest input used with the 7.3. The fs5306a transmission i'm using did come behind that engine but a shaft change is in order. Also the type of clutch (push or pull) and the pilot diameter is needed to get the right one since there are 5 different options. For the most part with eaton, the smallest pilot diameter input with a push clutch looks like the most common one.
 

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I don't know if anyone is still looking for this info but for the most part the big commercial clutches are fairly universal. I am able to keep my 1 3/4 input shaft and the pull type mechanism. A 14" clutch from Phoenix friction for that setting fits the 7.3idi, psd, the DT466 and a huge list of other brands and sizes.
 

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are you going to make up a custom bracket to fit your clutch slave onto the pull type clutch fork? or are you making your firewall strong enough to go with the manual linkage system?
 

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I don't know if anyone is still looking for this info but for the most part the big commercial clutches are fairly universal. I am able to keep my 1 3/4 input shaft and the pull type mechanism. A 14" clutch from Phoenix friction for that setting fits the 7.3idi, psd, the DT466 and a huge list of other brands and sizes.
Thanks for that information, don't know if this will help you but you can see how I adapted my stock slave to drive my transmission with a 14 " clutch. The pedal is stiffer than stock but not by a whole lot. It's on post 101

http://www.oilburners.net/forums/showthread.php?t=75190

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Tgould

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are you going to make up a custom bracket to fit your clutch slave onto the pull type clutch fork? or are you making your firewall strong enough to go with the manual linkage system?

i haven't figured out the clutch yet as the truck started out auto but the pull types don't use a fork. They have a rod that runs across the top of the input shaft with a 2 finger claw that hooks into the pressure plate. This rod goes all the way through the housing and has a bracket on the driver side. on my trans it looks like if you took the stock clutch setup and hooked it to the rod in a way so that when the linkage pushed the claw pulled. i had an external slave setup from a '95 when i was looking at this.

and to make it easier the part number for the clutch i found is 107683-5 at Phoenix friction. there is a dual disc version but the single is good for 620ft-lbs and should be more than enough for some 25k lbs loads.
 
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