Re: Rear end gears
[Re: 70charger512]
#2551505
09/18/18 02:17 PM
09/18/18 02:17 PM
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Joined: Nov 2006
Posts: 2,252 IL
furious70
top fuel
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top fuel
Joined: Nov 2006
Posts: 2,252
IL
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As the owner of a car with a cammed 440 and a .68 OD ratio with a 4.10 dana, my perspective is I still don't have enough gear to make effective use of OD until I'm going 70mph. Of course it screams in 4th gear at 65. The tremec gear splits don't work great with cammed up street cars IMO, 1st gear is already granny gear, if I put any more gear in it I'd never use first, less gear and I'd only use OD when I can go 80 on the freeway. If you go with a 3.55 I don't think you'd often find yourself in 5th gear.
70 Sport Fury 68 Charger 69 Coronet 72 RR
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Re: Rear end gears
[Re: 70charger512]
#2551729
09/18/18 11:44 PM
09/18/18 11:44 PM
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Joined: Jul 2011
Posts: 953 Chicago
PurpleBeeper
super stock
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super stock
Joined: Jul 2011
Posts: 953
Chicago
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Furious is giving you some really good advice. No overdrive, then 3.55's or 3.23's. With overdrive, 3.73, 3.91 or 4.10
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: Rear end gears
[Re: 70charger512]
#2551881
09/19/18 11:48 AM
09/19/18 11:48 AM
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Joined: Nov 2006
Posts: 2,252 IL
furious70
top fuel
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top fuel
Joined: Nov 2006
Posts: 2,252
IL
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I should have said I've got 28" tires. A 5.7 hemi is going to feel very different about the 'lugging' rpm, the heads are far more efficient than the old stuff.
70 Sport Fury 68 Charger 69 Coronet 72 RR
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