1 ton ring and pinion swap out....Where to look? - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72freak · 08-10-2009, 08:15 PM

I want to make the dually a little more driver friendly. We are fairly sure its a Eaton H072. 12 bolt. Axle code LY1114
Ring gear says GM 3(7)6 and then 3934643-7

After doing the math we are fairly sure its a 5.14 rear end.

From here and other places I have gathered info that says for this rear I can only get a 5.14, 4.57 or a 410...Is this true? Is there any other options out there?

I am not interested in digging through rears at junkyard looking for something with better suited ring and pinion. Are there any companies that sell or make whay i need? Do any of you have an old rear that has a better gear in it it that might be for sale?

The truck has a granny 4 speed so I can go to a 308, 350 ish or 373. I called out local gear and axle place today and was told " I will have to look into this...my books dont go back that far"?!?!?!?!? I didnt hear back.

Any other recomendations would be apppreciated.

08-10-2009, 08:15 PM	#1
72freak Rottenwood Garage Member Join Date: May 2005 Location: Marietta, Georgia Posts: 4,321	1 ton ring and pinion swap out....Where to look? I want to make the dually a little more driver friendly. We are fairly sure its a Eaton H072. 12 bolt. Axle code LY1114 Ring gear says GM 3(7)6 and then 3934643-7 After doing the math we are fairly sure its a 5.14 rear end. From here and other places I have gathered info that says for this rear I can only get a 5.14, 4.57 or a 410...Is this true? Is there any other options out there? I am not interested in digging through rears at junkyard looking for something with better suited ring and pinion. Are there any companies that sell or make whay i need? Do any of you have an old rear that has a better gear in it it that might be for sale? The truck has a granny 4 speed so I can go to a 308, 350 ish or 373. I called out local gear and axle place today and was told " I will have to look into this...my books dont go back that far"?!?!?!?!? I didnt hear back. Any other recomendations would be apppreciated. Attached Images __________________ 2004 Chevrolet Suburban C1500 2001 Chevrolet 2500HD Crew 6.0 1999 Harley Davidson Electra Glide 1972 Chevrolet C-20 Custom Camper "Dump Truck" 1972 Chevrolet C-20 Suburban "Big Green" 1969 Chevrolet C-50 Wedge Hauler "Leonidis" 1966 C-10 2x4 short fleet 327 4 speed "Race Truck" 1952 Plymouth Cranbrook "Rican" (my grandfathers) 1931 Ford Model A Coupe "Black Beauty" 1930 Ford Model A truck "Club Cab" 4x4 Rottenwood Garage and Speed Shop.....where everything must be racy! *It's not just a hobby..It's a LIFESTYLE!!!* Thanks for nothing Barrett-Jackson You cant fix stupid or teach accountability! Time wasters, looky Lous and tire kickers are everywhere! Last edited by 72freak; 08-10-2009 at 08:22 PM.



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