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03-01-2005, 10:56 PM
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#1 |
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driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,748
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highest rear gears for 12 bolt?
Im really REALLY tired of my automatic tranny. God I hate these things. I only got one because it was the cheapest way of getting a reliable overdrive, but I can't take it anymore. I want about 2500rpm@ 80mph, so I need a 2.6x gear with a 1:1 tranny ratio [will problably put in a muncie M20 4sp] Did chevy make anything close to that for a 12bolt axle?
On another note: anyone got a muncie M20 and want to trade for a stage 2 built 2004R? 
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. Last edited by Tom; 03-01-2005 at 11:11 PM. |
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03-01-2005, 11:51 PM
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#2 |
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huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,368
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They did have a 2:73 ratio from the factory for a 12 bolt. That's what my neighbor's 81 K10 with a 4 spd came factory with...
Chuck
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90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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03-02-2005, 12:03 AM
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#3 |
Join Date: Jan 2003
Location: Modesto, CA
Posts: 1,321
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I've heard of a 2.59 in a CAR 12 bolt...
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03-02-2005, 12:17 AM
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#4 |
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huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,368
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Car 12 bolt and truck 12 bolt are totally different. We went through that when my neighbor swapped gears...
Chuck
__________________
90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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03-02-2005, 02:11 AM
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#5 |
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Web Wheeler
Join Date: Jan 2000
Location: BC, Canada, eh?
Posts: 388
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2.56, 2.73, 2.76, 3.07, 3.40, 3.73, 4.11 were avilable for the truck 12-bolt.
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'66 C10 longstep - Clifford equiped '84 C20 Suburban 6.2L - awaiting 4x4 conversion '91 V3500 Crewcab - awaiting diesel swap |
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03-02-2005, 10:59 PM
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#6 |
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driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,748
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2.73's seem perfect, thanks for the info guys!
Now to find those 2.73's, M20 and manual setup for the truck.... 
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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03-02-2005, 11:54 PM
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#7 |
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huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,368
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I can ask my neighbor if he wants to part the 2:73's we removed from his truck. I'll check with him tomorrow and let you know back...
Chuck
__________________
90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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