Fox T-Bird/Cougar Forums

General => Lounge => Topic started by: 20th anny 5.o on April 01, 2009, 05:45:10 PM

Title: My brother and i are having a discussion
Post by: 20th anny 5.o on April 01, 2009, 05:45:10 PM
So my brother and i are having a discussion about his 06 Ford focus 5 speed. He insists that 5 gear is over-drive i insist that it is just fifth gear. Just because fifth is .76 -1 he insists that it is OD.
Title: My brother and i are having a discussion
Post by: 86XR7project on April 01, 2009, 05:53:58 PM
I've always kind of assumed 5th was overdrive just because they are completely useless gears other than cruising down the road.
Title: My brother and i are having a discussion
Post by: 20th anny 5.o on April 01, 2009, 05:59:09 PM
ah ok well then thank you.
Title: My brother and i are having a discussion
Post by: thunderjet302 on April 01, 2009, 06:21:11 PM
Yep 5th is OD. Any trans gear that has a ratio of less than 1:1 is a OD gear. ;)
Title: My brother and i are having a discussion
Post by: cougarman on April 01, 2009, 06:21:44 PM
Usually if the gear ratio is less than 1:1, it is considered overdrive. :D
Title: My brother and i are having a discussion
Post by: HAVI on April 01, 2009, 06:33:55 PM
Tell him the 5 speed you were thinking of was in a Ford F8 truck, not Focus.  :D
Title: My brother and i are having a discussion
Post by: 86XR7project on April 01, 2009, 06:50:06 PM
Tell him you were thinking of 5th gear on a 6 speed car.
Title: My brother and i are having a discussion
Post by: Chuck W on April 01, 2009, 07:04:18 PM
Quote from: thunderjet302;265333
Yep 5th is OD. Any trans gear that has a ratio of less than 1:1 is a OD gear. ;)


Quote from: cougarman;265334
Usually if the gear ratio is less than 1:1, it is considered overdrive. :D


Ding and ding.

Your brother wins...;)
Title: My brother and i are having a discussion
Post by: Kitz Kat on April 01, 2009, 07:13:48 PM
Really depends on what gear is in the rear!
6th might be worthless.
Title: My brother and i are having a discussion
Post by: Thunder Chicken on April 01, 2009, 08:05:15 PM
The rear end gear (or final drive in a FWD car) has no bearing on overdrive gears. Any gear ratio with less than 1.00 ratio is an overdrive, including 5th gear in most 6-speed trannies (yes, the T56 are double-overdrive). It's called overdrive because the output spins faster than the input.

FWIW, many older 4-speed truck trannies are OD as well in 4th gear (3rd is the 1:1)
Title: My brother and i are having a discussion
Post by: Kitz Kat on April 01, 2009, 08:13:48 PM
What ever happened to upduction? just askin?
Title: My brother and i are having a discussion
Post by: Thunder Chicken on April 01, 2009, 08:54:23 PM
Upduction?
Title: My brother and i are having a discussion
Post by: 4btPanther on April 01, 2009, 09:17:06 PM
Quote from: Thunder Chicken;265374
The rear end gear (or final drive in a FWD car) has no bearing on overdrive gears. Any gear ratio with less than 1.00 ratio is an overdrive, including 5th gear in most 6-speed trannies (yes, the T56 are double-overdrive). It's called overdrive because the output spins faster than the input.

FWIW, many older 4-speed truck trannies are OD as well in 4th gear (3rd is the 1:1)

I'd LOVE to have the Tremec T-56 tranny in my car, I'm an economy kinda guy and think that would work GREAT, I dunno what my orginial transmission weighs (Ford Focus) but I know the T-56's are about 130 - 150 lbs. and Expensive, about $2,000 used.



Quote from: Thunder Chicken;265391
Upduction?

I too must inquire, what is Upduction?

Unless this is a April Fool's joke (Which I am suspicious that it is)

I've never heard of it.

4BTPanther
Title: My brother and i are having a discussion
Post by: Haystack on April 01, 2009, 09:44:38 PM
I could get one from a camero with the adapter plate and use a ford pressure plate with a corvette clutch, while using a regular t-5 bell housing. I figure it would cost me $1300 with a used tranny.