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Author Topic: 1978 Eagle 05 Differential  (Read 3853 times)
gpzzdrm
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« on: April 26, 2006, 03:16:44 PM »

I am doing a repower with a Cummins ISM / World Trans. and I am looking for a 4:10 ratio ring and pinion for my differential. It is a 1978 Eagle 05.
Anyone got any ideas where to look for this set of gears.
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Kristinsgrandpa
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« Reply #1 on: April 26, 2006, 05:49:52 PM »

http://www.trucks.com/parts_used_tires.asp

I don't know what your Eagle rearend is but, this outfit has shops in Ohio and Florida. They have gears and whole rearends out of trucks.

HTH, Ed
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location: South central Ohio

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Ericbsc
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« Reply #2 on: April 26, 2006, 06:22:48 PM »

Try Pinson Truck Parts in South Carolina. Large inventory of rear end parts, new and used. 864-578-0675
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David Anderson
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« Reply #3 on: April 26, 2006, 07:07:08 PM »

I thought all the eagles had a 3.36 or 3.73 rearend.  Did you change something?  I don't recognize that ratio.

David Anderson
1985 Eagle 10
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gpzzdrm
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« Reply #4 on: April 27, 2006, 03:40:29 PM »

I thought all the eagles had a 3.36 or 3.73 rearend.  Did you change something?  I don't recognize that ratio.

David Anderson
1985 Eagle 10

I currently have a 3:73 and wish to go to a 4:10 or 4:11. I am learning. Apparently my reference to 4:10 was wrong in that no Eagle ever had that ratio. However, I learned today that there were some made in the seventys that had 4:11 gears.
Thanks for your info.
Bill
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gpzzdrm
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« Reply #5 on: April 27, 2006, 03:44:47 PM »

http://http://www.trucks.com/parts_used_tires.asp

I don't know what your Eagle rearend is but, this outfit has shops in Ohio and Florida. They have gears and whole rearends out of trucks.

HTH, Ed

Thanks, I have looked there (both places). I bought my World Trans. through the Fla. yard.
Bill
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gpzzdrm
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« Reply #6 on: April 27, 2006, 03:45:40 PM »

Try Pinson Truck Parts in South Carolina. Large inventory of rear end parts, new and used. 864-578-0675
Thanks,
Never heard of them, but I will try there.
Bill
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scanzel
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« Reply #7 on: April 28, 2006, 04:24:59 AM »

Why would you want 4:10 or 4:11's. In my by gone street drag racing years those gears were great for the quarter mile run but bad on fuel for just cruising down the pike. My old Dodge power wagon had 5:38's in it, could pull a house down with that gearing but on the highway the flathead six screemed at 55 mph.You could hear me coming.
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Steve Canzellarini
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gpzzdrm
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« Reply #8 on: April 28, 2006, 07:49:02 AM »

Why would you want 4:10 or 4:11's. In my by gone street drag racing years those gears were great for the quarter mile run but bad on fuel for just cruising down the pike. My old Dodge power wagon had 5:38's in it, could pull a house down with that gearing but on the highway the flathead six screemed at 55 mph.You could hear me coming.
I will have a World transmission with 5th / 6th gear Overdrive. The combination will give me far better accelleration from a stop, better grade performance, but it with the OD, I will have considerably better fuel economy than I have now. Further, the Cummins ISM has a huge improvement in HP and torque over the 8-71 we are swapping out. There is no comparison. I have been driving the 8-71 for almost 10 years and I sure won't claim that it has provided anything close to "good" mileage.  Further, if you look at specs, some of the high line coaches are running 4:30 and 4:33 gears with the transmission we are putting in.
Thanks for you thoughts.
Bill
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Tom Y
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80 5C With Cummins L10 in Progress




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« Reply #9 on: April 28, 2006, 09:27:31 AM »

Bill, Does your Eagle run a dropbox?  There was a guy in MO that had 4.10 w/dropbox.  What the litre of the ISM? I am putting in a L10 in a 5c and wish I had bought a truck for parts. I just bought a truck with a N14 for the wheels, should have bought one sooner in the project. Goodluck  Tom Y
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Tom Yaegle
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« Reply #10 on: April 29, 2006, 03:00:28 AM »

Bill, Wayne St. Onge (sp?) had told me that he had a 4:10 (new I think).  He sold a lot of his parts to Wayne Schell. 

You should have both of the their phone numbers from the roster.

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Jim Shepherd
Evergreen, CO
’85 Eagle 10/Series 60/Eaton AutoShift 10 speed transmission
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gpzzdrm
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« Reply #11 on: May 01, 2006, 07:13:05 AM »

Bill, Does your Eagle run a dropbox?  There was a guy in MO that had 4.10 w/dropbox.  What the litre of the ISM? I am putting in a L10 in a 5c and wish I had bought a truck for parts. I just bought a truck with a N14 for the wheels, should have bought one sooner in the project. Goodluck  Tom Y
My Eagle does have a drop box. I believe all Eagles since the model 01 have them. The ISM is the latest evolution of the M11 and is 11 litres if I am correct.
Bill
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gpzzdrm
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« Reply #12 on: May 01, 2006, 07:14:45 AM »

Bill, Wayne St. Onge (sp?) had told me that he had a 4:10 (new I think).  He sold a lot of his parts to Wayne Schell. 

You should have both of the their phone numbers from the roster.





I will call St. Onge right away.
Bill
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Tom Y
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« Reply #13 on: May 01, 2006, 09:31:28 AM »

Bill, I traded my 4.10 or 4.11 from my MCI 5C for a 3.38 from a Eagle. I can find the # if you are intrested.  Not sure he still has it, as I did see it on Ebay. Let me know if you are intrested.  Tom Y
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Tom Yaegle
gpzzdrm
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« Reply #14 on: June 09, 2006, 11:52:03 AM »

Bill, Does your Eagle run a dropbox?  There was a guy in MO that had 4.10 w/dropbox.  What the litre of the ISM? I am putting in a L10 in a 5c and wish I had bought a truck for parts. I just bought a truck with a N14 for the wheels, should have bought one sooner in the project. Goodluck  Tom Y
Tom,
Sorry it took so long to reply. Very busy for the past few weeks. The Cummins ISM is an 11 liter later version of the M11.
Bill
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