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Re: Gas mileage increase- six to BB OD
What trans? I made the switch from 250 to 402 but I kept the TH400 and I have not had a chance to check the MPG because the TH400 gave up the ghost.
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70 C/10 SWB 402/TH400/3.73 "The Needy Beast"
200,000 Mile Club
Disc Brake Club
Owner installed options:
Front Sway Bar
Power Steering
Power Brakes
Cigar Lighter
Courtesy Lights
Deluxe Side Markers
Wiper Delay
Sliding Rear Window
Power Windows
Power Locks
Sniper EFI
2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear
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