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zebra03
Member Joined: 27-May-2008 Status: Offline Points: 59 |
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Posted: 12-October-2008 at 3:38AM |
On my 76 Gran Torino, I believe I have 2.75 stock gears. What would my options be? What gears would you recommend ? My motor is stock except for the Edelbrock intake and 600 4bbl carb. Would this mess up my speedometer?
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GranTorinoMan
Senior Member Joined: 14-August-2005 Location: Canada Status: Offline Points: 920 |
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You can change your 1st and 2nd gears in your transmission which will increase your
torque without effecting your speedometer, assuming you have a C-4 or C-6.
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zebra03
Member Joined: 27-May-2008 Status: Offline Points: 59 |
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Would that be easier than changing gears in the rear end? I have a c-4 . I dont do much interstate driving.
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GranTorinoMan
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I think the effort is the same for both but it depends what needs to be serviced first. There are so many things that you can do to a C-4; better 1st, 2nd gear ratio, shift kit, torque convertor, R-Servo, etc. I think you'll like the results more than a gear swap and it will feel even better when you change the gears in your axle.
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zebra03
Member Joined: 27-May-2008 Status: Offline Points: 59 |
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I have a shift kit installed and it shifts very firm. I dont think I will mess with the tranny. What are my options for gears in the rearend ?
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GranTorinoMan
Senior Member Joined: 14-August-2005 Location: Canada Status: Offline Points: 920 |
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A good 9" Posi or Limited Slip is usually a good place to start. My first change in rear gears was 3.00's to 3.70 Ltd Slip. It made my car a lot more fun to drive, however my stock rear suspension wheel hopped a lot, mostly because of my lead foot. Do you plan to drag race your car?
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zebra03
Member Joined: 27-May-2008 Status: Offline Points: 59 |
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no drag racing. It is mostly a show car I like to run in town once in a while.
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PatsPOS
Member Joined: 06-April-2004 Location: westcentral PA Status: Offline Points: 101 |
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Reckon I'll throw my 2ยข in here real quick. Gear choice depends a lot on what kind of driving you'll be doing most of the time. Unless you do a LOT of highway driving, I'd stay away from 3.00s...they're not much (if any) better than the 2.75s you have now. A 3.25 gear is still a pretty good choice for the highway, and you'd definitely notice a difference over the 2.75s. They'd be a little doggy for around-town cruising, but bearable. 3.50 gears would be winding things out a LITTLE on the highway. With a 28" tall tire, I'm turning around 3000 RPM @ 70 MPH with 3.50s. This is what I consider the best of both worlds...not bad (but not great) gas mileage, and fun on the street. Now if you do most of your driving in town and want a BSEG (big XXXX-eating grin), then go with 3.70s. Probably not a very good highway gear, unless you have deep pockets for gasoline.
3.91s and 4.11s are mostly for dragstrip duty, IMO...although I've known a few guys that have taken 4.11-equipped cars out on the highway. They don't go fast and don't go far, and they sure don't do it very often!
And yes...you'll need to change your speedometer gear when you change your gear ratio. Speedo driven gears are still available at the Ford dealer (and many other places), and they're ridiculously easy to change. However, before you can get a new one, you'll need to know how many teeth are on the gear you have in your tranny now.
HTH,
Pat
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'75 460 Gran Torino Sport (14.04 @ 97 MPH)
'91 Crown Vic (18.09 @ 75 MPH) '89 300 F-150 (18.37 @ 73 MPH) |
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GranTorinoSport
Admin Group Admin of "The Org" Joined: 20-May-2003 Location: Seattle Status: Offline Points: 2287 |
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I agree with Pat - I have a Torino with 2.75 and another with 3.00 - there is a slight difference between the two, but I'd recommend 3.25 unless you plan on a bunch of highway driving at 70MPH.
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