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Old 04-28-2002, 07:05 PM   #1
69Chevyc10
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Post What gears do I have?

I was wondering what rear end gears I have. It is a 69 C-10 that came original with a straight six (now a V8) and a three speed manual. Also it came with posi. Brian Wolf
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Old 04-28-2002, 07:19 PM   #2
Fast68Chevy
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3.73 with that drivetrain unless glovebox door label says differently


250 engines and 3 speed manual trans with any engine almost always = 3.73
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-71 C-10 350/CH465/3.07, assemble it, yeah right, that'll happen in this world,(not)
-84 Z28 Camaro 5.0L 700R4, 3.73, beater, paid way too much for it like an idiot,,
-84 Firebird SE 2.8L T-5, rod knocking, dammit,,
-82 Firebird 350 4bolt (TBL)/TH350, not running, dammit...
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[This message has been edited by Fast68Chevy (edited April 28, 2002).]
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Old 04-28-2002, 07:46 PM   #3
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My straight is a 292 does that change it? Brian Wolf
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Old 04-28-2002, 07:53 PM   #4
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No... just like Fast68 said.
No optional info on glove box... standard equipment was a 373 gear set in your truck.
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Old 04-28-2002, 08:02 PM   #5
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and regarding 307 engines, 3.73 came in all 1968 307 trucks except with the M10 overdrive option ordered,
but in the later years the 307 with 4 speed chevy or turbo hydr tranny got 3.07 gears, and with 3 speed got 3.73 gears as was the case with the 350 engine, but not the 396 engine, 396 engine = 3.07 and 3.54 depending on tranny ordered

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Randy- Lincoln, IL
randy@ccaonline.com 2177353230
-71 C-10 350/CH465/3.07, assemble it, yeah right, that'll happen in this world,(not)
-84 Z28 Camaro 5.0L 700R4, 3.73, beater, paid way too much for it like an idiot,,
-84 Firebird SE 2.8L T-5, rod knocking, dammit,,
-82 Firebird 350 4bolt (TBL)/TH350, not running, dammit...
buy/sell/hoard/trade most any GM vehicle parts of any kind
-parting out: '81 Cutlass Supreme Brougham
*Paint is overrated
© RSS Enterprises 2000




[This message has been edited by Fast68Chevy (edited April 28, 2002).]
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Old 04-28-2002, 08:28 PM   #6
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While we are on the subject, what would be the ratio on my 72 GMC 2wd be with a 350/350? If nobody can tell me this then maybe someone can tell me where to look on the rear end. Seems like someone said on the axle tube somewhere? Darren
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Old 04-28-2002, 08:33 PM   #7
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3.07 onless otherwise stated in your glove box.
But that was 30 years ago...no telling what is in there now.
I would pull the cover off, and count the teeth. The refill it. When was the lastt iem you chainged the oil in there anyways?

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Old 04-28-2002, 10:59 PM   #8
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so i 72 lwb 2wd that came with a 307/350 turbo automatic i have 307'???

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