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08-27-2008, 03:52 AM
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#1 |
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K5-2WD=C5
Join Date: Dec 2006
Location: California
Posts: 69
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inline 6 cylinder 12 bolt rear differential
Trailing arm rear end. It came off of a 67-72 work truck. How would this perform in a 1970 2wd Blazer, with a 5.3L V8 Vortec engine? or LS1 5.7L?
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08-27-2008, 05:44 AM
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#2 |
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Senior Member
 
Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,205
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Re: inline 6 cylinder 12 bolt rear differential
L6 rear ends were the same as V8s. Should work OK with either 327 or 350.
__________________
Every 25 years I like to rebuild that 292, whether it needs it or not. |
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08-27-2008, 05:59 AM
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#3 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,861
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Re: inline 6 cylinder 12 bolt rear differential
Yeah,no differences between L6 & V8.Do you know the ratio?6-bangers generally had lower gearing.
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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08-27-2008, 06:15 AM
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#4 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: inline 6 cylinder 12 bolt rear differential
it'd perform like any other 3.73 ratio 12 bolt!
 Odds are it's a 3.73, and as everyone is saying, it's the same rear as any other 1/2 ton. |
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08-30-2008, 07:52 AM
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#5 | |
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Senior Member
Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,205
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Re: inline 6 cylinder 12 bolt rear differential
Quote:
There might be some spring perch issues and differences between the two, but nothing that can't be corrected by a good welder. The differential was otherwise the same.
__________________
Every 25 years I like to rebuild that 292, whether it needs it or not. |
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08-30-2008, 11:22 AM
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#6 | |
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Out of the carpool lane.
Join Date: Jan 2000
Location: Clark Co, WA
Posts: 5,673
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Re: inline 6 cylinder 12 bolt rear differential
Quote:
 especially that most L6's were 3.73 despite what 70rs/ss will say if he sees this thread. (An inside joke- his experience is that most were 4.10's)
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1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten... |
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08-30-2008, 12:05 PM
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#7 |
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Registered User
Join Date: Apr 2006
Location: Hockinson, Washington
Posts: 114
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Re: inline 6 cylinder 12 bolt rear differential
As long as you have the welder out, box the trailing arms and you will never have to touch them again. Cheap insurance if your desire for torque ever get's out of hand.
__________________
1968 Chevrolet C-10, 2WD, Longbox, Vortec 350, Monster Transmission 700R4, 3.73 gears Good judgment comes from experience, and experience, well......that comes from bad judgment. 1968 Chevy C-10 "Longshot": Bought used from my Uncle George in 1994 and proceeding to beat the hell out of it for 4 years. Sold it. Bought it back, dumped an ungodly amount of money into it since then. |
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