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#21
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Quote:
Rich |
#22
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3.55's were often the go to gear from the factory with a manual trans with 3.23's for AC applications. 3.08 was typically the lowest numerical axle offered with manual trans (before the fuel economy desperation era). 3.08 is definitely not an unreasonable gear for a 400 but it is near the limit.
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My Break Away Squad 1969 Fbird (Base, 350 & Sprint Cvt’s - 400HO & TA Hardtops) 1969 LeMans (2dr & 4dr Hardtop and a Cvt) 1969 LeMans Safari 2 seat Wagon 1969 GTO (2 Cvt, 2 Hardtops & Judge Hardtop) 1969 Catalina (3 Cvt’s & a 2dr hardtop) 1969 Ventura 2 Seat Wagon 1969 Executive 4dr Sedan 1969 Bonnie Cvt 1969 Bonnie 3 Seat Wagon (2 of them) 1969 Bonnie Brougham (4dr Hardtop & Cvt) 1969 Grand Prix SJ (2 of them) 1969 2+2 2dr Hardtop (Canadian model) |
#23
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Quote:
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Jeff |
#24
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I ran a 400 with a Saginaw 4 speed with a 3.31 first gear with a 2.56 one legger for years. Super fun to drive on the highway as it would get great MPG and you could keep up with traffic at 80+. Plus high speed! 80 MPH was right around 1750-1800 with a tall tire. I did end up going to a 3.23 rear and it was def quicker, but the MPG's def went down.
Now the car is very low to the ground with a 468c.i. engine and a TKO500 and a Ford9" with 3.50 rear gears. MPG is not great, but I'm gonna put in a Magnum 6 speed here this winter. The 5 speed is going into my LS swap Volvo.
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1967 Pontiac Tempest 2dr HRDTP Coupe 468 C.I. 500 HP 5 speed = FUN!!! 1990 Chevy Suburban R2500 Daily Driver 1986 Volvo DL245 Wagon.. Project car!!! The Burb Files |
#25
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Quote:
3.23 was worth the switch. |
#26
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No problem with 3:08's / M20 combo, that's how my 66 TP came when new.
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#27
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I agree. I would run a 3.08 with an M-20 in a heartbeat with anything with a 326 or bigger engine. Not a problem at ALL.
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Jeff |
#28
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I ran an M20 with a 2.56 Safe T Track back in the '80's in my 67 Tempest 326 4bbl and dual exhaust...got 20mpg on the highway cruising 65...not bad I thought.
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#29
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My 68 Bird convert was built with 3.08s from the factory with an M20. No problem at all driving it when I was a much younger redneck. Of course, I was married at the time and my burnout days were mostly behind me......... LOL
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