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Old 04-09-2013, 03:16 PM   #1
bulldog77
 
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Trans and rearend.

Maybe some one can help me out. Our company has a old 86 gmc top kick with a 3208 cat, eaton 5 speed, and eaton rear. I cant read the tag on the trans and cant really find anything on the rear other than eaton stamped on it. Can anyone help me out on identifying these?
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Old 04-09-2013, 03:43 PM   #2
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Truck originally used to be a sewer vac truck.
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Old 04-09-2013, 09:19 PM   #3
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there were so many different combo's on those trucks that it could be anything.
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Old 04-09-2013, 09:34 PM   #4
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Kinda what I have come up with. I'll have try to inspect it some more when its not snowing and thundering here.
Thanks

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Old 04-09-2013, 09:34 PM   #5
BowtiedCTD
 
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you're best bet is to take the vin number and call a gm dealer that you trust on the parts side with an older guy still working there that might know a little somethign about the older medium duty trucks.
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Old 04-09-2013, 09:37 PM   #6
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The tag is still on the Trans but has been painted over. And i thought the rear was a little big and over kill for the truck.

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Old 04-10-2013, 12:33 PM   #7
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This is what i got off the rear.
Cast into it 107493

Stamped on top of pumpkin
22121
119548
G1883
5 57

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Old 04-10-2013, 08:32 PM   #8
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I'm not coming up with many specs on this rearend. Or i'm looking in the wrong places.
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Old 04-11-2013, 12:46 AM   #9
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the eaton 5spds are a common med duty trans for those, 5th is 1 to 1
 
Old 04-11-2013, 06:39 PM   #10
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About the only good info on the rear end I'm coming up with is that it has a 17 ring gear. Not much more info on it. Or could be looking the wrong places. Any info would be greatly appreciated.

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Old 04-12-2013, 06:41 PM   #11
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Click the image to open in full size.
Click the image to open in full size.

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Old 04-20-2013, 07:30 AM   #12
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Take some lacquer thinner and try to free the paint up from the tag for the transmisison.
 
Old 04-20-2013, 07:33 AM   #13
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I can try to run those numbers off the axle while I am at work in my spare time, are you able to get a picture of the brake shoes though? preferably the ends where the rollers are sitting. But a pic of the whole shoe roller to roller please.

Last edited by Fahlin Racing; 04-20-2013 at 07:34 AM. Reason: spelling
 
Old 04-20-2013, 09:34 PM   #14
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I'll try beginning of next week. Thanks.

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Old 04-23-2013, 07:37 PM   #15
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There should be numbers on the end of the pinion.

Dale
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Old 04-23-2013, 08:29 PM   #16
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I'll check. Thanks

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Old 04-24-2013, 06:04 PM   #17
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107495. If they are on the end of pinion shaft I'll have to take drive shaft off.

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Last edited by bulldog77; 04-24-2013 at 06:06 PM.
 
Old 04-24-2013, 08:17 PM   #18
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Yes their fairly small

Dale
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Old 04-26-2013, 04:53 AM   #19
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Matt
You ever figure anything out?? Is that thing a 2spd?? Also can ya shoot me a pic of the rear of the housing??
Ill compare it to a few trucks we have around the shop.
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Last edited by Fireman450; 04-26-2013 at 04:59 AM.
 
Old 04-26-2013, 06:53 AM   #20
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Not yet, been busy with work. I'll shoot some more pics this morning. Thanks.

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