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09-20-2012, 12:50 PM
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70+ ( Old Skool Club )
 
Join Date: Nov 2003
Location: Saskatoon, Saskatchewan ,Canada
Posts: 9,144
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New Diff for my Big Block
Maybe this will help somewhat with my gas mileage. With my 3:73's and TH400 the 396 turns 3000 RPM at 70 MPH and with this 3:08 (and bonus,its a posi) my RPMs should go down to about 2400 which I hope will get me 2-3 MPG more which will bring me to the 15/16mpg instead of 12 mpg.
__________________
1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021 |
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