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10-28-2008, 08:49 AM
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#1 |
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Registered User
Join Date: Oct 2008
Location: Freeland, Michigan
Posts: 1
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70 3/4 ton axel ratio
Hey, new here to the forum and hoping someone can point me in the right direction or provide me with the info. I found in an old vehicle scrap yard here in Michigan three 67-72 c-20 trucks with 350's and auto trans, two standard and one camper special. I'm trying to locate specs that might give me some insight to the possible gear ratios these axles may have had. I'm told that the camper special is probably a Dana axle and if so will not work for me anyway as I'm looking for an Eaton to replace the carrier and gears in my 49 3/4 ton. Have 4.56 gears now and would like at least 4.10 or 3.90.
Thanks in advance. Chris |
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10-28-2008, 10:20 AM
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#2 |
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Registered User
Join Date: Sep 2005
Location: Smith Mountain Lake Virginia
Posts: 1,537
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Re: 70 3/4 ton axel ratio
check the glove box label first (might be listed) and then pull the diff covers... it'll be stamped on the gears and there would be no question as to wether they have been switched out or not - they'll be what they'll be.
__________________
"A cat will almost always blink when hit between the eyes with a ball peen hammer" (you don't always have to state the obvious) Wear your PPE! You can eat with false teeth but you can't see with a false eye. 1959 Studebaker Silverhawk 350/400 1972 C10 L6 3OTT 2005 F350 - Built - whew! |
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10-28-2008, 06:09 PM
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#3 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: 70 3/4 ton axel ratio
The custom camper (camper special is a ford in these years) would only automaticly have the dana if it was a big block truck.
Small block and automatic in 69 and up would be 4.10 gears if not messed with or optioned otherwise. 4.57 gears in 67/68... but no 350 engine option. Last edited by Longhorn Man; 10-28-2008 at 06:09 PM. |
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10-29-2008, 06:32 AM
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#4 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: 70 3/4 ton axel ratio
The center section will exchange through`72 on those Crporate axles.4.10 was a common ratio.I`d pull the differential covers and look for the gear count.You may get lucky and one will be a No-Spin (Detroit Locker).
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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