American Overdrive
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American Overdrive
Has anyone here ever run into an "American Overdrive Unit"? It was made in Redding, Ca and looks alot like a Gearvendor unit.
I am trying to find a wiring diagram for this unit.
Thanks
I am trying to find a wiring diagram for this unit.
Thanks
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No, I never found a wiring diagram. I think I've made my own from figuring where the wires went. I also found some info about one being put into a GM product that gives a little insight.
I'm really worried about using it. Not because there is anything wrong with it, but I was going to put in my son's 79, because he has a 4.10. But I have decided to go with a 3.54 rear end to lessen the trouble of a on the road breakdown, and no one knowing what to do.
If you are interested, let me know. Bob
I'm really worried about using it. Not because there is anything wrong with it, but I was going to put in my son's 79, because he has a 4.10. But I have decided to go with a 3.54 rear end to lessen the trouble of a on the road breakdown, and no one knowing what to do.
If you are interested, let me know. Bob
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american overdrive
I would be intersted in whatever you know!! I know nothing about these units so pardon my stupid questions
What % overdrive is it?
Do you know if these were made in overdrive and underdrive?
I think "Hone-O-Drive" was manafactured in Redding, do you know if this may be a decendant of the "Hone-O-Drive"?
Does the output shaft of the automatic trans go directly to the unit or is there a adapter hub? I am trying to figure out how difficult it would be to mate it to something other than a C6
Have you looked inside this unit to see how it works?
if yes I would be interested what shifts it, band, clutches, cone, slider like in a manual trans? and if it has 3 or 4 planetary gears
Thanks in advance,
Steven Holekamp
What % overdrive is it?
Do you know if these were made in overdrive and underdrive?
I think "Hone-O-Drive" was manafactured in Redding, do you know if this may be a decendant of the "Hone-O-Drive"?
Does the output shaft of the automatic trans go directly to the unit or is there a adapter hub? I am trying to figure out how difficult it would be to mate it to something other than a C6
Have you looked inside this unit to see how it works?
if yes I would be interested what shifts it, band, clutches, cone, slider like in a manual trans? and if it has 3 or 4 planetary gears
Thanks in advance,
Steven Holekamp
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Hone was an insert in the drive line. Had a short drive shaft in, and then one on to the rearend. Similar to a detached t-case. It had a manual shift lever.
This is very similar in looks to a Gearvendor. Replaces tailshaft housing, and bolts on direct to a C6. Has an oil line from the trans to the OD unit. Has a park interlock cable to disable OD in park, so vehicle won't roll.
As for how, why, type of shifting, %, have no idea.
If you don't mind the paying the price, I'd watch Ebay.
Note. Redding CA. seems to have been a hot bed for OD units;
There was Hone, American Overdrive, Mitchell OD or UD stand alone like the Hone. Gearvendor says they are not connected, and US Gear is all gear drive, so doesn't need a interlock cable.
Hope this has been of some help. Bob
This is very similar in looks to a Gearvendor. Replaces tailshaft housing, and bolts on direct to a C6. Has an oil line from the trans to the OD unit. Has a park interlock cable to disable OD in park, so vehicle won't roll.
As for how, why, type of shifting, %, have no idea.
If you don't mind the paying the price, I'd watch Ebay.
Note. Redding CA. seems to have been a hot bed for OD units;
There was Hone, American Overdrive, Mitchell OD or UD stand alone like the Hone. Gearvendor says they are not connected, and US Gear is all gear drive, so doesn't need a interlock cable.
Hope this has been of some help. Bob
Last edited by elliott; Nov 17, 2003 at 04:04 PM.
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Steven, go to Ebay and look up overdrive in the auto parts section. The is an American OD unit for a turbo 400, an a couple of Doug Nash units less the adapters from what the pictures look like. Bob
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american overdrive
Thats what got me started looking for info, I have not gotten a reply from the seller on the OD ratio, I am a little worried if it really is made out of existing transmission parts it is likely a 45% overdrive(if it uses a planetary set from from a TH400 or TF727)
I am looking for a 30% od, GV are 22% this is going in a car so the DN is a little big, no place for you feet in the back seat
Thanks for the reply,
Steven
I am looking for a 30% od, GV are 22% this is going in a car so the DN is a little big, no place for you feet in the back seat
Thanks for the reply,
Steven
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I've never heard of a 45% OD. That seem mighty steep. That means a 3.00 rear end would be = to a 1.35 in OD: a 4.10 would be = to a 1.84. Also. American, Doug Nash, Gearvendor all mount about the same. They all add about a foot to the trans length. Bob
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Got a reply back from the seller he turned it an checked the rotation, it is about a 50% overdrive(probably TH 400 gearset it would be 48%), that is a bunch!!! you are going to need to shift this thing, with 4.11 you run about 110mph at 6000rpm, just right for the quarter mile, but with 48% OD you run 80mph at 2300, not many engines make power from 2300 to 6000, except the oems mentioned above with engine management, probably a better application for an underpowered truck pulling a load at 60mph and running empty at 80 in OD
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From: Somewhere USA
Any updates?
I just purchased one of these off ebay, with no instructions.
Does anyone have the instructions for the Ford truck with C6 install?
I could probably figure it out, but I'd like to have the instructions anyway.
Thanks
Does anyone have the instructions for the Ford truck with C6 install?
I could probably figure it out, but I'd like to have the instructions anyway.
Thanks
