overdive for C4?

hotrodredneck

New Member

Jul 28, 2004

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Newport News Va

Dec 26, 2006

#1

• Dec 26, 2006

• #1

I was reading in mustnag monthly, or mustangs and fords, I cant remember...anyway I saw an article on overdrive extensions for C4's. I was wondering if anyone has had them, or can tell me more about them. I would like to keep this car numbers matching, so I dont want to change the tranny out or anything, but driving on the autobahn witha three speed gets her up in the RPMs.

 

ultrastang

Founding Member

Feb 26, 2002

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Arkansas

Dec 26, 2006

#2

• Dec 26, 2006

• #2

hotrodredneck said:

I was reading in mustnag monthly, or mustangs and fords, I cant remember...anyway I saw an article on overdrive extensions for C4's. I was wondering if anyone has had them, or can tell me more about them. I would like to keep this car numbers matching, so I dont want to change the tranny out or anything, but driving on the autobahn witha three speed gets her up in the RPMs.

Click to expand...

Check gear vendors; http://www.gearvendors.com/



www.ultrastang.com

 

hotrodredneck

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Jul 28, 2004

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Newport News Va

Dec 26, 2006

#3

• Dec 26, 2006

• #3

do you have any experience with it? or know anyone who has? is it worth it?

 

ultrastang

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Feb 26, 2002

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Arkansas

Dec 26, 2006

#4

• Dec 26, 2006

• #4

hotrodredneck said:

do you have any experience with it? or know anyone who has? is it worth it?

Click to expand...

I know an older Mustanger from Florida (whom I've met in person a couple of times), who posts at Mustang Steve's. His name is Lou (this is also the name he posts by there).

He has a Gear Vendor over drive unit in his Mustang, and I'm sure he would be glad to answer any questions you have about it.

 

6

66HertzClone

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Aug 24, 2004

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Central New Jersey

Dec 27, 2006

#5

• Dec 27, 2006

• #5

I installed a gearvendor unit in my 66 and am very happy with it. I did have to "reshape" the depreesion in the drive shaft tunnel directly behind the shifter in order fot it to fit in place. A five minute or less job with a medium hammer.
I decided to have a new driveshaft made instead of cutting the old one shorter. The only problem I had was with the parking brake, I have a MagnaFlow X pipe exhaust and these is very little space between the OD unit and the X pipe, for now I've secured the cable up and out of the way. I intend to work on getting it connected this winter.

I can cruise at 70 mph turning about 2200 rpms with the unit activated. I usually do not use unless I'm on the highway, a quick stab on the "extra" dimmer switch an it engages without any lurch.


This is a do it yourself job, I did it without a lift in my garage all by myself. I did drop the trans because I was replacing the torque converter, but it is not necessary to drop it just installing the unit. There are a few photos of it on my CarDomain pages, if you have specific question let me know.

 

hotrodredneck

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Jul 28, 2004

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Newport News Va

Dec 27, 2006

#6

• Dec 27, 2006

• #6

thanks guys....now looking at the prices, would it be more worth getting the OD unit or a new tranny? What would you do?

 

6

66HertzClone

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Aug 24, 2004

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Central New Jersey

Dec 28, 2006

#7

• Dec 28, 2006

• #7

If you want an overdrive you have really only two options with an automatic trans. Adding the GearVendor unit or replacing the C4 with an AOD trans. You did say that you wanted to keep it as "number matching" as possible", that makes the AOD a more difficult option. You do not have to rebuild the C4 in order to install the GV unit. You might consider installing new seals when and if you decide to install the GV.

 

A67StangMaster

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May 4, 2005

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San Jose CA

Dec 28, 2006

#8

• Dec 28, 2006

• #8

HOLY COW!!!
$ 2,495.00
You could get a nice T-56 Tranny for that price...

 

S

slackr

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Feb 10, 2004

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Denver

Dec 28, 2006

#9

• Dec 28, 2006

• #9

Swap for an AOD...
Keep the C4 for the numbers...

.02

 

hotrodredneck

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Jul 28, 2004

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Newport News Va

Dec 29, 2006

#10

• Dec 29, 2006

• #10

well I e-mailed GV a few days agao, now just waiting on an answer from them. With the GV unit, you install a switch to make it work right?

 

6

66HertzClone

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Aug 24, 2004

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Central New Jersey

Dec 29, 2006

#11

• Dec 29, 2006

• #11

Yes, a dimmer switch is included in the kit, I mounted mine to the right and slightly above the existing headlight dimmer switch. Almost every wire has a modular jack and plugs right in, only a ground and switched power are needed.