overdrive unit?

BB67FB · Jan 11, 2008

Howdy!
Any one driving a stang with an overdrive unit in it? what kind? did you install it yourself? pros and cons? I am considering a overdrive unit for my mustang - just installed 4.11 gears and love the performance, but the rpms are pretty high at highway speeds! thanks in advance.

Grabber70Mach · Jan 12, 2008

No I haven't. What trans is in your car now. Have you thought about doing a AOD conversion if you already have a auto. You might find it to be more cost effective.

Nosboss · Jan 12, 2008

I am in the process of installing a Hone-O-Drive unit in my '66 coupe. The hone unit is not available anymore but is very easy to install and user-friendly. You can get a Gearvendors unit but it will cost some big coin. It all depends if you want to keep the original tranny or not. Most people go with a new tranny. Here is my thread you can read through...

http://forums.stangnet.com/showthread.php?t=732642

BB67FB · Jan 13, 2008

I am running a toploader right now, and wont go to a auto. Been eyeballing the gearvendors overdrive, but man is it expensive...

Rusty67 · Jan 13, 2008

If you have a stick shift in there already, you would be way better off installing a T5. What sort of engine do you have and how much torque is it puting out ?

gp001 · Jan 13, 2008

I put a Richmond 6 speed in my 66. That overdrive gear is beautiful for cruising

66HertzClone · Jan 14, 2008

I have the G-V unit in my car and love it. I installed it at home with the car on jack stands, without assistance. I decided to have a new driveshaft made rather than have the original one shortened. A few electrical connections, an adapter for the speedo cable and it was done.

Only had one small problem, the speedo cable was forced to bend tightly due to the trans tunnel. It failed quickly, G-V replaced it at no charge, I purchased a 90 degree adapter and it has worked without issue ever since.

mikethebike · Jan 14, 2008

My O.D. is called a T-5. Much easier and less expensive in the long run than a seperate unit.

BB67FB · Jan 14, 2008

I thought about going with a 5 speed, but dont want to do the mods on my stang. I have a 289 in it right now, but in the near future I will be going back to a big block - either a 390 or a 428 - and hope to push about 400-500hp, depending on which engine i go with. how hard was the six speed to install? do you drag race your car? Mine sees limited use on the track, but im not very nice to her when I am there.... Gotta give her some love, right?

gp001 · Jan 14, 2008

BB67FB said:
I thought about going with a 5 speed, but dont want to do the mods on my stang. I have a 289 in it right now, but in the near future I will be going back to a big block - either a 390 or a 428 - and hope to push about 400-500hp, depending on which engine i go with. how hard was the six speed to install? do you drag race your car? Mine sees limited use on the track, but im not very nice to her when I am there.... Gotta give her some love, right?

I have put 10k+ very hard miles on this combo with no issues. I drag race, road race, and generally drive this car hard (it is a toy). My buddy had a Richmond ROD in his vette and did yearly cross country trips with his vette club. He also drag raced and auto crossed it without issue. They aint cheap, but it sure is cool to have a 66 Mustang with a true 6 speed.

You can check out my install here http://www.2mfffabshop.com/rod.htm

Rusty67 · Jan 15, 2008

I'll definately agree that the ROD trans is a badass unit. If I had the cash, I'd go that route myself. If you want ease of installation and a bullet proof 5 speed, go with an Astro or a G-Force T5. I don't think a gear vendors unit will take big block punishment....

Hack · Jan 15, 2008

Rusty67 said:
I'll definately agree that the ROD trans is a badass unit. If I had the cash, I'd go that route myself. If you want ease of installation and a bullet proof 5 speed, go with an Astro or a G-Force T5. I don't think a gear vendors unit will take big block punishment....

From what I've read, the gear vendors units are pretty bulletproof. A big block is no problem for them.

10secgoal · Jan 15, 2008

A stock GV unit takes 1200 hp reliably. From there, there are upgrades.

jamison42166 · Jan 15, 2008

id love to have a gear vendors unit in mine but id have to loose my TCP X-frame assembly and redo the stainless exhaust i just did. wondering also how much weight the GV unit adds. does anyone make an add on OD that bolts up to the front of the differential instead of behind the transmisson?

bnickel · Jan 16, 2008

jamison42166 said:
id love to have a gear vendors unit in mine but id have to loose my TCP X-frame assembly and redo the stainless exhaust i just did. wondering also how much weight the GV unit adds. does anyone make an add on OD that bolts up to the front of the differential instead of behind the transmisson?

the old hone-o-drive units bolted up the pinion flange of the rearend but they went out of business a long time ago. finding one of those is extremely difficult. do a search over the last few pages of this forum and you'll find a discussion on the hone unit that another member is installing right now. awesome units but rare as hens teeth and expensive when you can find one. i've been looking for several years.

BB67FB · Jan 16, 2008

I am a bit curious about the weight too, but the GV unit is taking the tail housing and replacing it, so I dont think it could be too bad.

valley82 · Jan 17, 2008

I ran a G-V unit on my F-350 Turbodeisel +100 h.p. +125lbs torque chip.
The truck was heavy & lifted w/35inch tires and I pulled a 27ft. toyhauler loaded to the gills alot.
I beat the crap outta that truck (shreaded the E4OD tranny) - never had any issues with the G-V unit over the 110,000 miles I put on it.

overdrive unit?

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