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1st Gen. Ram - All TopicsDiscussion for all Dodge Rams prior to 1994. This includes engine, drivetrain and non-drivetrain discussions. Anything prior to 1994 should go in here.
Johnny "Be Happy" - I've got a '93 Dodge W250 (600K Mi); think I've got the stock A518 trans - had it reconditioned twice, due to dumb A**s (DA) operator (me)! The trans specialist told me about the electric/electronic component in the OD component of the A518 trans. His folks tore it apart and showed me the bands; I thought there were OD electric-initiated bands in the housing. Agree w/you; once you start changing-out stuff from one make/model to another things are bound to change. I've kept my rig stock; but have realized the front suspension on my rig was ill designed for a 600K life; and a DA operator trying to rock it out of deep mud! Can't find the "frame to steering gear bracket" been living w/a chain lashing eversince the bracket cracked. Don't know why a 60 mph problem has morphed into a transfere case problem? Johnny "Be Happy" - winston
Could you clarify your "Be Happy" remarks?
Just so you are aware, AJ is a long time certified Torqueflite master tech at a dealership, his knowledge is unimpeachable............
Johnny "Be Happy" - I've got a '93 Dodge W250 (600K Mi); think I've got the stock A518 trans - had it reconditioned twice, due to dumb A**s (DA) operator (me)! The trans specialist told me about the electric/electronic component in the OD component of the A518 trans. His folks tore it apart and showed me the bands; I thought there were OD electric-initiated bands in the housing. Agree w/you; once you start changing-out stuff from one make/model to another things are bound to change. I've kept my rig stock; but have realized the front suspension on my rig was ill designed for a 600K life; and a DA operator trying to rock it out of deep mud! Can't find the "frame to steering gear bracket" been living w/a chain lashing eversince the bracket cracked. Don't know why a 60 mph problem has morphed into a transfere case problem? Johnny "Be Happy" - winston
Don't worry, I'm always happy.
The O/D uses a bunch of direct clutches that stay applied by the use of an 800 PSI spring when it is out of O/D. The valve body has a solenoid that is operated electrically by the PCM. This allows hydraulic fluid to flow to the O/D apply piston which applies the O/D clutches while simultaneously pushing on the direct clutch holding spring to release those clutches. There are no electronic parts in the O/D unit itself. A band wraps around a drum and holds it from moving. Clutches are used to apply turning torque to a component or to hold a component. What they showed you must have been clutches and not bands.
The O/D uses a bunch of direct clutches that stay applied by the use of an 800 PSI spring when it is out of O/D. The valve body has a solenoid that is operated electrically by the PCM. This allows hydraulic fluid to flow to the O/D apply piston which applies the O/D clutches while simultaneously pushing on the direct clutch holding spring to release those clutches. There are no electronic parts in the O/D unit itself. A band wraps around a drum and holds it from moving. Clutches are used to apply turning torque to a component or to hold a component. What they showed you must have been clutches and not bands.
I've got most of it sitting on a bench if anyone wants to see the inside of the od housing lol.
Whoa! patdaly - I'm not refuting anyone. Angry Johnny says it all; "The valve body has a solenoid that is operated electrically by the PCM". Like I say I'm a DA; but I do take the opportunity to look at my trans when laid out on the bench - clutches, bands, torque converter, et al. I appologize to all, if offended. winston
Whoa! patdaly - I'm not refuting anyone. Angry Johnny says it all; "The valve body has a solenoid that is operated electrically by the PCM". Like I say I'm a DA; but I do take the opportunity to look at my trans when laid out on the bench - clutches, bands, torque converter, et al. I appologize to all, if offended. winston
Well I got lucky(maybe), my buddy had a np241c sitting around he let me have for a 6 pack of beer I'm seeing others online have used the chevy 241c on their dodge 47rh automatic transmission without any issues so I'm thinking of giving it a shot. From what I'm reading most of the parts on the 241DLD and 241C are interchangeable, all I will need to do is swap the input shaft. What do you guys think? here's a couple pictures to compare the two
08-17-2016, 07:51 PM
Don't worry, I'm always happy. 
I'm seeing others online have used the chevy 241c on their dodge 47rh automatic transmission without any issues so I'm thinking of giving it a shot. From what I'm reading most of the parts on the 241DLD and 241C are interchangeable, all I will need to do is swap the input shaft. What do you guys think? here's a couple pictures to compare the two
