Rod K
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Joined:
Dec 2003
Charlotte, NC, US
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I bought a track lok rear from a Mark VII to get the 5 lug conversion. It is a 3:27. I have a 3:73 in the car now (5 speed car). I think I should use the 3:73. My son thinks I should use the 3:27. Anyone here running a 3:27 in a TC? The car is an 88.
Rod Kiser, '88TC, 5 speed, 5 lug, Cobra 13" front brakes, Mark VII 11 1/4" rear disc brakes, PiMP'n, Bullit wheels, ATR 3" exhaust, Aluminum driveshaft, EDIS, 60 LB injectors, gutted upper & ported lower. NATO Member
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bhazard
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Joined:
Nov 2005
Swanton, OH
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you sure its a 3.73 right now? 5 speeds came with 3.55's
obviously if you care at all about your acceleration you wont want 3.27
88 TC, 170k, K&N, $5 Boostvalve, Stinger 3" ex., 3" Magnaflow, 3" Stinger tail, Zoom clutch
15.26 @ 86mph, 2.18 60' killed valvetrain & headgasket
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trashline
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Joined:
Feb 2005
Levittown, PA
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87/88 autos were 3.73's manuals were 3.55's. where do you do most of your driving? alot of highway the 27's would be better and help on gas milage. around town the 73's get you out of the hole quicker but cost more rpms in the highway cruise.
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Rod K
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Joined:
Dec 2003
Charlotte, NC, US
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It was an auto and I left the 3:73 rear when I did the 5 speed changeover.
Rod Kiser, '88TC, 5 speed, 5 lug, Cobra 13" front brakes, Mark VII 11 1/4" rear disc brakes, PiMP'n, Bullit wheels, ATR 3" exhaust, Aluminum driveshaft, EDIS, 60 LB injectors, gutted upper & ported lower. NATO Member
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