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#1 |
Registered User
![]() Join Date: Feb 2011
Location: North Texas
Posts: 118
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72 Custom Camper rear end ratio?
402 big block, turbo 400, with leaf springs. SPID card does not identify, looking for gear ratio options. I suspect 3.54 but not quite sure.
Anyone?
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Jeff Horsman 1972 C20 Highlander "C" 1966 Olds 442 L69 four speed 1971 Skylark (GS clone racecar) 494 stroker 1986 Buick T-Type |
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#2 |
Moderator
![]() Join Date: May 2007
Location: Southern Cal
Posts: 20,006
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Re: 72 Custom Camper rear end ratio?
If you have a Dana 60 it is probably 3.54
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man |
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#3 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: 72 Custom Camper rear end ratio?
Ledddzepp has it right. A '72 C/20 400/Auto would have the D60 3.54 ration. With leaf springs 4.11 was an option.
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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#4 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: 72 Custom Camper rear end ratio?
My 402/TH400 Custom Camper w/Dana 60 is (was) also a 3.54, though I swapped it for 4.56 when I added the overdrive transmission. Can't swear that they all had that same ratio, but from the posts above it looks pretty common.
A wire brush will tell all, though.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#5 |
Registered User
![]() Join Date: Sep 2007
Location: Rufus Oregon
Posts: 1,187
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Re: 72 Custom Camper rear end ratio?
If it's still in place, on the inspection cover of the rear end, usually on one of the top bolts, there should be a small metal tag. This will have the ratio embossed on it. Like the other guys said, should be 3:54 ratio. This is common.
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#6 |
Registered User
![]() Join Date: Feb 2011
Location: North Texas
Posts: 118
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Re: 72 Custom Camper rear end ratio?
Located the tag...3.54 is what it says. Thanks guys!
__________________
Jeff Horsman 1972 C20 Highlander "C" 1966 Olds 442 L69 four speed 1971 Skylark (GS clone racecar) 494 stroker 1986 Buick T-Type |
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#7 |
Registered User
![]() Join Date: Sep 2007
Location: Rufus Oregon
Posts: 1,187
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Re: 72 Custom Camper rear end ratio?
Hey!! No problem!! Enjoy that truck, keep her on the road!!
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#8 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: 72 Custom Camper rear end ratio?
Just FYI Mine was stamped on the housing rather than on a separate tag, so if you don't see the tag you can generally still find it I believe.
Posted via Mobile Device
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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