AMC V-8s
(→Automatic transmissions) |
(See Borg Warner Corporate history website pages) |
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1965-'66 models used a throttle valve cable instead of a vacuum modulator to control internal pressure. This is the M-10, internally similar to the M-8 except for the TV cable and valve body. The cable '''must''' be connected for the transmission to work correctly! Otherwise it will burn up like a cable equipped GM TH700R4 or a Chrysler transmission without the "kick-down" linkage connected. On the '67-'71 "Shift Command" versions, an electric solenoid inside the valve body controls kick-down (passing gear). A switch on the throttle linkage (usually on the engine) is activated at wide open throttle to force a downshift for passing, etc. It will not kick down over a certain speed, usually in the 60-70 mph range. | 1965-'66 models used a throttle valve cable instead of a vacuum modulator to control internal pressure. This is the M-10, internally similar to the M-8 except for the TV cable and valve body. The cable '''must''' be connected for the transmission to work correctly! Otherwise it will burn up like a cable equipped GM TH700R4 or a Chrysler transmission without the "kick-down" linkage connected. On the '67-'71 "Shift Command" versions, an electric solenoid inside the valve body controls kick-down (passing gear). A switch on the throttle linkage (usually on the engine) is activated at wide open throttle to force a downshift for passing, etc. It will not kick down over a certain speed, usually in the 60-70 mph range. | ||
| − | These are reasonably heavy duty transmissions. They are equivalent to a Ford-O-Matic or FMX three speed, which were used behind their 352 and 390 cid engines | + | These are reasonably heavy duty transmissions. They are equivalent to a Ford-O-Matic or FMX three speed, which were used behind their 352 and 390 cid engines, moreover in smaller V8 Ford 150 thru 1979. Borg-Warner's website history page states they made Ford-O-Matic in 1950. Ford contracted to buy 50% of their automatic transmissions from Borg-Warner through 1958, and built a factory to build the other 50% on their own. That's why the same trans kit will work with Borg-Warner and several Ford auto transmissions; BUT it '''is not''' a Ford transmission! The Ford transmissions '''should''' bolt to the AMC bellhousing, no one I know has tried since the older Ford transmissions and parts availability is about the same as the Borg-Warner units. |
The only "problem" with these transmissions is finding someone familiar with rebuilding them, and that there are no performance parts. Most good performance torque converter shops can rebuild the stock converter, and should be able to change the stall speed. Some are busy enough with more familiar/popular transmissions that they don't work on odd-balls like this any more. The only other performance mod is to change the line and/or converter pressure valve springs. There are no springs made specifically for this purpose, but some have either stretched or shimmed the stock springs or replaced them with other springs they have found, but this takes some searching and experimenting, so be careful! | The only "problem" with these transmissions is finding someone familiar with rebuilding them, and that there are no performance parts. Most good performance torque converter shops can rebuild the stock converter, and should be able to change the stall speed. Some are busy enough with more familiar/popular transmissions that they don't work on odd-balls like this any more. The only other performance mod is to change the line and/or converter pressure valve springs. There are no springs made specifically for this purpose, but some have either stretched or shimmed the stock springs or replaced them with other springs they have found, but this takes some searching and experimenting, so be careful! | ||
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