I don't have one but the reading is very detailed on the gearvendors website. The main place that I see a benefit is in gas mileage and top-end speed (if that's of value to the prospective purchaser). You asked a good question: do we have any members with one on their car? What do you think now that you're there? -K --- dansgarage@xxxxxxxxxxxx wrote: > Hi All...just curious about the 'details' side of > adding a 'overdrive' unit to my IMperial (1966), > what's the approx. total cost, I assume it also > needs a shortened drive-shaft, and from those > IML'res that have installed and are using one, what > type of gas-mileage difference as well as any > difference in acceleration have you noticed (if > any!) ????? > thanks all! > Dan Melnik > > ---- Kenyon Wills <imperialist1960@xxxxxxxxx> wrote: > > > ============= > > > 2. Overdrive > > Is anyone using an overdrive unit? If so, what is > > the reliability of it? > > The Gear Vendors gearbox sounds almost too good to > > be true. Can it handle a > > 3 ton car under(brisk) acceleration? Does it hang > > down too far? > > > > > It's less about the weight of the car than it is the > stress placed on the driveline. I didn't go revisit > their website, but I recall them saying that they > were > rated to 1200 horsepower or some such stratospheric > number. If they can handle a hotted-up camaro doing > launches, your dinosaur should not prove a problem. > They are trying to make this thing work on as wide a > spectrum as possible. > > Richard Palme has one in a car that he showed me. > Works great, and turns your 3-speed into a 6-speed > with an under-dash auto/manual shift option. > > Expect to use a mallet or sledge to pound the > transmission tunnel out. Therefore, you'll want to > be > installing it someplace other than a gravel lot, and > perhaps where you have access to a car lift? Doing > that on jackstands could be precarious. Get a can > od > spray undercoating to seal things up after the > pounding is done but before final fitment would be > a > good idea. > > I plan to put one into a 72/73 coupe behind a HP > motor > if/when I find one (please keep your eyes open for > one, folks). Gear Vendors seems to be THE option > and > they are Torque-Flight friendly. > > Kenyon Wills > > > > > > > > > > > > > > > > > > > > > > > > > ----------------- http://www.imperialclub.com > ----------------- > This message was sent to you by the Imperial Mailing > List. Please > reply to mailing-list@xxxxxxxxxxxxxxxx and your > response will be > shared with everyone. Private messages (and > attachments) for the > Administrators should be sent to > webmaster@xxxxxxxxxxxxxxxx > To UN-SUBSCRIBE, go to > http://imperialclub.com/unsubscribe.htm > > > > > ----------------- http://www.imperialclub.com > ----------------- > This message was sent to you by the Imperial Mailing > List. Please > reply to mailing-list@xxxxxxxxxxxxxxxx and your > response will be > shared with everyone. Private messages (and > attachments) for the > Administrators should be sent to > webmaster@xxxxxxxxxxxxxxxx > To UN-SUBSCRIBE, go to > http://imperialclub.com/unsubscribe.htm > > ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm