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#1
10-28-2009, 12:38 AM
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Re: Odd option on LS6 Chevelle
My 68 L-35 Camaro was ordered with and still has the 2:56 Posi 12-bolt (code "PO" also calls out "w/metallic brakes") not sure what the signifigance of that was...but its the only 68 Camaro rear listed as such in the reference manual I have.
Original owner ordered that way, and recalled problems and warranty work on the TH400, which he suspected was due to the rear gearing.
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Dave C. 68 SS396 Camaro 69 SS396 CB Chevelle Conv. 70 340 Dart Swinger 70 SS396 Chevelle 4spd 70 SS396 Chevelle 70 BB 4spd Monte Carlo 70 SS454 Monte Carlo 71 SB 4spd Monte Carlo 71 SS454 Monte Carlo 71 Corvette LS-5 conv. 71 Corvette LT-1 conv. 71 Corvette LS-6 coupe 72 Monte Carlo 72 Monte Carlo Custom 72 442 W-30 clone 76 Trans Am SE 455 4 spd 85 Mustang GT Conv. 86 Grand National 02 SS conv. 
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#2
10-28-2009, 03:11 AM
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Re: Odd option on LS6 Chevelle
I have seen a lot of 12 bolts in 327 big cars.
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 Steve 68 SS427 Custom Coupe 427/385/M21/3:73 68 Impala Custom Coupe 427/425/M21/3:73 68 Biscayne 2 Door 250/3 speed 68 Caprice Estate 68 Camaro SS396 4 speed
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#3
10-28-2009, 05:21 AM
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Re: Odd option on LS6 Chevelle
Dave,
I don't think the PO code was anything other than a 2.56 posi. No idea why the Metallic Brake note, it is the only ratio in 68 with that note... Did it have the original rear brakes shoes when you got it? Steve / Warren, Didn't the F40 suspension add another control arm? If so, was the mount on 10 bolts or only on 12 bolts?
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Kurt S - CRG
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#4
10-28-2009, 05:37 AM
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Re: Odd option on LS6 Chevelle
[ QUOTE ]
Dave, I don't think the PO code was anything other than a 2.56 posi. No idea why the Metallic Brake note, it is the only ratio in 68 with that note... Did it have the original rear brakes shoes when you got it? [/ QUOTE ] The car had 43k on it when I got it, I think they had already been changed...I changed them before putting her back on the road (sure I still have what I took off somewhere) I know I have seen that note in more than one place...it was the only code/ratio to call out the metallic brakes...not sure why? Dave
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Dave C. 68 SS396 Camaro 69 SS396 CB Chevelle Conv. 70 340 Dart Swinger 70 SS396 Chevelle 4spd 70 SS396 Chevelle 70 BB 4spd Monte Carlo 70 SS454 Monte Carlo 71 SB 4spd Monte Carlo 71 SS454 Monte Carlo 71 Corvette LS-5 conv. 71 Corvette LT-1 conv. 71 Corvette LS-6 coupe 72 Monte Carlo 72 Monte Carlo Custom 72 442 W-30 clone 76 Trans Am SE 455 4 spd 85 Mustang GT Conv. 86 Grand National 02 SS conv.
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#5
10-28-2009, 05:55 AM
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Re: Odd option on LS6 Chevelle
They didn't need done at 43K, but it's not uncommon for people to be talked into having them serviced.
My SS has 90K miles on it and the rear drums have never been off.
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Kurt S - CRG
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#6
10-28-2009, 05:07 PM
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Re: Odd option on LS6 Chevelle
[ QUOTE ]
I have seen a lot of 12 bolts in 327 big cars. [/ QUOTE ] Agreed, I have owned a few big cars (1 '65 Impala and 2 '66 Biscayne's) over the years and they all had unmolested 12 bolts in them. 
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John 
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