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05-23-2011, 11:20 PM
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#1 |
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Registered User
Join Date: Jun 2000
Location: Wichita Falls,Tx
Posts: 56
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rear end ratio
Is there a way to ID a rear end ratio with out jacking the rear and counting the drive shaft rotations or pulling the cover. I remember something from my camaro racing days about a code on the tube next to the pumpkin. But I can't find any numbers there.
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05-24-2011, 05:51 PM
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#2 |
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Plays with trucks
Join Date: Sep 2003
Location: Asheville, NC
Posts: 433
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Re: rear end ratio
Sometimes you can get lucky and find either the ratio or the code on the glove box sticker.
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Gary My Dad's Old Truck 1985 
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05-24-2011, 06:26 PM
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#3 |
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Registered User
 Join Date: Sep 2010
Location: New Hope, PA
Posts: 279
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Re: rear end ratio
my 85 has the rear ratio in the glove box. thats saying the po didnt change them out. mine was 2.08's i think put when i pulled the cover they were 3.42's
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1985 c10 355 th350 (working on 4 speed conversion to super t10) 1979 camaro 358 super t10 2003 f250 superchip slp exhaust |
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05-24-2011, 08:16 PM
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#4 |
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Registered User
Join Date: Jun 2000
Location: Wichita Falls,Tx
Posts: 56
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Re: rear end ratio
ah I was afraid of that.
My sticker in the glove box is long gone. Thanks guys |
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05-24-2011, 08:22 PM
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#5 |
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#16876
Join Date: Apr 2005
Location: Auburn WA
Posts: 12,266
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Re: rear end ratio
There may be a code number stamped on the ring & pinion.
__________________
Posted via Stationary Device '71 Custom Deluxe C-20 402. '67 Buick Special 455. '49 Plymouth Special Deluxe. "I love that old car smell"  Some people are like Slinkies... not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs. |
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05-25-2011, 12:58 PM
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#6 | |
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Registered User
Join Date: Sep 2010
Location: New Hope, PA
Posts: 279
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Re: rear end ratio
Quote:
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1985 c10 355 th350 (working on 4 speed conversion to super t10) 1979 camaro 358 super t10 2003 f250 superchip slp exhaust |
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05-26-2011, 03:30 AM
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#7 |
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Registered User
Join Date: May 2011
Location: Cotati, Ca
Posts: 2
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Re: rear end ratio
If you can find the option code sticker ( about 4 x 6 inches with about 30 or so 3 digit codes ie: m40, L05, etc) usually in the glove compartment, look for GU6( 3.42) or GT4(3.73) or GU5 (4.10) also G80= posi. Good luck!
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05-26-2011, 05:46 PM
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#8 |
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Registered User
Join Date: Jun 2000
Location: Wichita Falls,Tx
Posts: 56
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Re: rear end ratio
Hey thanks, but my option code sticker is long gone. I don't even see any sticky stuff that might be left behind when it got yanked. Do all trucks get that option code sticker? Mine was a service truck with out a lot of options.
I'm going to have to pull the cover like Sillyoldman said and look for a number or count them and divide them. |
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05-26-2011, 06:35 PM
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#9 |
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Senior Member
Join Date: Feb 2010
Location: Maumelle, AR
Posts: 478
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Re: rear end ratio
That is the best way to be sure what ratio you have.
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