Gear Vendors Overdrive - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 10-11-2015, 11:53 PM Thread Starter
 
Join Date: Aug 2013
Posts: 156
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Gear Vendors Overdrive

I have been looking for reviews on the McLeod 5 speed tranny. I finally found one on a Nova site that was pretty bad, leaking oil and grinding in a couple of gears.

I know the Tremec is very popular, but I'm concerned about all of the cutting I would need to do.

Also, either of these 5 speeds gets away from the spirit of an old Muncie four speed.

Since my main interest all along is being able to cruise at highway speeds a little more comfortably, and keep the oomph of a lower gear for around town, I am now looking at a Gear Vendors under/over drive. Here's their website.

https://www.gearvendors.com/hotrods.html

Anyone have any experience with these?
65gto is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 10-12-2015, 07:12 AM
 
Bigfoot21075's Avatar
 
Join Date: Oct 2015
Location: Elkridge, MD
Posts: 34
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I am all ears as well.....
Bigfoot21075 is offline  
post #3 of 7 (permalink) Old 10-12-2015, 10:04 AM
 
Join Date: Jan 2015
Location: Injun Territory, 'Merica!
Posts: 1,611
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 121 Post(s)
they work, had a GV od unit off the back of the built Turbo 400 in my old 3/4 ton GMC. 468 BBC with 4.09 rear gearing. can I say it paid for itself, not really, didn't have the truck but for 2 years and it was just an occasional tow rig. An old friend had a similar deal, American Eagle OD in his '86, and it paid for itself, as he kept the truck into the 00's.

in a vintage musclecar thats a streetcar/cruiser, and added weight is not an issue, the GV OD and shortening the driveshaft makes a LOT more sense to me than cutting a large hole in the floor for an aftermarket Tremec 5spd... been through that. An old friend and Vette guy I'm dealing with today has two loose GV OD's he's run behind multiple BBC's. I'm looking at one today for him to see what it takes to mate to a M22 in his '72 vette.

If OD and an automatic are the priority, and the Pontiac V8 musclecar is a very healthy street machine/ cruiser, I'd go with a built 200R4, the gear ratios in the 200r4 are much more conducive to the torque band of a Pontiac than the ultra low 1st gear 700R4. Have built rears for several Pontiac with both, and just prefer the built 200R4.
Pinion head is offline  
 
post #4 of 7 (permalink) Old 10-12-2015, 11:17 AM Thread Starter
 
Join Date: Aug 2013
Posts: 156
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Thanks, I haven't been able to find a bad review on these, other than price. But it looks like the cost of a 5 speed and this are about the same.
65gto is offline  
post #5 of 7 (permalink) Old 10-13-2015, 06:53 AM
 
Bigfoot21075's Avatar
 
Join Date: Oct 2015
Location: Elkridge, MD
Posts: 34
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
These look like an easy straight forward install in most cases. My '65 GTO with a 4 speed manual would be really nice with a highway overdrive gear. It is expensive, but still a winter project that could be justified.
Bigfoot21075 is offline  
post #6 of 7 (permalink) Old 10-14-2015, 10:59 AM
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 8,561
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 119 Post(s)
I would run a GV unit long before I'd cut up a floorpan (not an option). Another solution is to change the gears in the rear end. That's what I've done with both my GTO's. For a 4 speed car, a 3.23/3.36 is the ticket, and for an automatic car, a 2.93-3.08 is about perfect. Gear vendors units are bulletproof, and work very well, but you will need to drive the car about 200,000 miles to make it cost effective, gas-wise.
geeteeohguy is offline  
post #7 of 7 (permalink) Old 03-02-2016, 06:36 AM
 
Join Date: Jan 2013
Location: New York
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
I was looking into a gv but went with a 2004r instead. I am not sure but with the gear vendor I thought you would have to modify the trans tunnel on the gto. Not sure if any one advise if that true.
brooknice is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Undercarriage, Frame, Transmission and Differential Discussions.

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
67 gto wants overdrive, gear vendor or modern transmission fiesta62 1964-1974 Tempest, Lemans & GTO Undercarriage, Frame, Transmission and Differential Discussions. 12 08-24-2014 12:34 AM
Gear Vendors O/D in 66 GTO ibuildm 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 1 04-29-2014 08:19 PM
gear vendors 64SOFTTOPGTO 1964-1974 Tempest, Lemans & GTO General Discussion 9 03-05-2011 02:26 AM
overdrive danthepontiacman 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 0 04-22-2010 02:50 PM
Automakers in overdrive 05GTO In the News 0 01-07-2005 05:56 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome