Gear Vendors OD

[Hilljack68]

Running it through the gears was fun, but the overdrive is what I was looking for and it was flawless.

Thanks for the testimony. I was thinking about an A518 OD tranny from the 90's , but I'd heard there may be some fitment issues inside the tunnel. I've been leaning toward the GV. Thanks guys.

 

[Hemirunner]

I have been 9.50@143 with my GV OD on the back of a 727. It is only .78 to one but it’s still a nice reduction in RPM when cruising with traffic. I can run 80mph down the interstate all day long with my 3.73 rear gear in OD.

 

[Cranky]

Thanks for the testimony. I was thinking about an A518 OD tranny from the 90's , but I'd heard there may be some fitment issues inside the tunnel. I've been leaning toward the GV. Thanks guys.

Yup, the OD unit requires some mods to the tunnel.....

 

[Fran Blacker]

Hon-O-drive is still around but only fit/kit for ford 9". wonder if you could fabricate something to hang behind trans.? Probably not worth the trouble.
http://honeodrive.com/

 

[myk r sanchez]

I have been 9.50@143 with my GV OD on the back of a 727. It is only .78 to one but it’s still a nice reduction in RPM when cruising with traffic. I can run 80mph down the interstate all day long with my 3.73 rear gear in OD.

What RPM are you turning at 80mph?

 

[Hemirunner]

What RPM are you turning at 80mph?

2800 or so. Converter is a tight 3800rpm stall speed 10-1/2” Coan. Car should be an easy 8.50 quarter mile car this year if I’d ever get the wiring finished.

 

[Budnicks]

I heard these are good, thought about going to this unit
SMR Shorty 727 + GV OD Transmission
http://smrtrans.tripod.com/smrtransmissionsintro/id32.html
was like $3050 + the shorty trans case etc.
albeit that was a few years back

stock to easily 1200+Hp capable

 

[Hemirunner]

I heard these are good, thought about going to this unit
SMR Shorty 727 + GV OD Transmission
http://smrtrans.tripod.com/smrtransmissionsintro/id32.html
was like $3050 + the shorty trans case etc.
albeit that was a few years back

stock to easily 1200+Hp capable

That’s the version of GV OD that I have. I wouldn’t call it a true bolt in. At least mine wasn’t. I know of one other guy who sent his back for the longer version due all the installation issues.

 

[Budnicks]

That’s the version of GV OD that I have. I wouldn’t call it a true bolt in. At least mine wasn’t. I know of one other guy who sent his back for the longer version due all the installation issues.

 

[Hey-O]

They are different in a mopar than a GM. I always used Coan 350 turbos, takes less power to turn one than a 400 which means more power to the wheels and smaller. Unbolt the tail shaft and bolt it in it place. The further back the smaller the tunnel.