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11-15-2004, 04:58 PM
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#1 |
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Registered User
Join Date: Sep 2003
Location: Boise ID
Posts: 609
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Rear Gear
Does anybody know the gear ratio of A 69 chevy 3/4 ton 396 Turbo-400 trans. The truck is all stock.
 Gary
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"72" Red CORVETTE 4-speed 350 "70" Chevy Short Bed early stages of resto. Edel 600 cfm carb Weiand Stealth Intake HEI shorty Headers 4/2 Drop 295 50R 15 TOYO on 10 inch wide corvette rally rims at all 4 corners. "CHEVY RULES" 
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11-15-2004, 05:12 PM
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#2 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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3.54 more likely than not.
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11-15-2004, 05:22 PM
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#3 |
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Registered User
Join Date: Sep 2003
Location: Boise ID
Posts: 609
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Longhorn Man Would you know the gear ratio in my 70 1/2 ton 4-speed (original truck trans).350 engine. THANK YOU VERY MUCH!!!!!
 Gary
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"72" Red CORVETTE 4-speed 350 "70" Chevy Short Bed early stages of resto. Edel 600 cfm carb Weiand Stealth Intake HEI shorty Headers 4/2 Drop 295 50R 15 TOYO on 10 inch wide corvette rally rims at all 4 corners. "CHEVY RULES"
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11-15-2004, 05:34 PM
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#4 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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3.07 acording to the books.
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11-15-2004, 10:52 PM
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#5 |
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Cantankerous Geezer
Join Date: Aug 2002
Location: Bel Aire, KS
Posts: 6,264
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I thought the 3/4 ton only had two choices. 4.57 with the 4 speed, 4.10 with the automatic.
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Fred There is no such thing as too much cam...just not enough engine.
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11-15-2004, 11:06 PM
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#6 |
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Registered User
Join Date: Jun 2004
Location: Beeville, Texas
Posts: 1,943
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If it has an Eaton rear end it could have 4:11's, mine does. Originally had a 350/TH350, now has a 350/TH400.
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RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck Last edited by Robert1970C20rstbukt; 11-15-2004 at 11:09 PM. |
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11-15-2004, 11:22 PM
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#7 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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the big block trucks usually got the dana, and acording to the GM catalogs, came standard with the 3.54 gears. I would have to look, but I don't remember seeing an option gear for 396/402 trucks.
This is why I would give my left nut for a one ton big block rear axle. Caddys don't like to rev up much. |
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11-15-2004, 11:27 PM
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#8 | |
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Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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Quote:
 i got one but i dont take left ones just right ones j/k
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's  (the family car)1993 Cherokee work ride/weekend wheeler |
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11-16-2004, 12:04 AM
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#9 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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OK...let me rephrase....
I would give my left nut for one in my area that is affordable. There...I feel better now. |
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11-16-2004, 12:30 AM
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#10 |
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Registered User
Join Date: Feb 2003
Location: The Rubber City
Posts: 5,498
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Andy, I thought the dana 60 only came in the 3/4 ton trucks and the 1 tons all got the Eaton HO72.
Oh, and PM sent. 
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1969 GMC K2500  1996 Honda Accord 2007 Kawasaki KLR 650 |
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11-16-2004, 12:33 AM
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#11 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Hmmmm, right you are.I'll have to look up the one ton big block stuff tomorow.
Good catch. |
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