Attention: TDR Forum Junkies 
They don't know what they mean. Whether a transmission is controlled by the FACTORY computer or an aftermarket standalone it HAS to be an electronic transmission. Electronic transmissions have SOLENOIDS that shift the trans by controlling oil flow to the transmission elements - the clutches and servos. That's what the computer - factory OR aftermarket - is doing. HYDRAULIC transmissions use a GOVERNOR and MECHANICAL VALVES that are shifted by GOVERNOR PRESSURE to control oil flow to the transmission elements. But even a HYDRAULIC transmission can have an ELECTRIC SOLENOID to control converter lockup.
And 47RHs and 48RHs DO have an electric solenoid. That's why they have an O/D OFF button. Do you notice how nobody wants to have an actual TECHNICAL discussion? That's because they're NOT as confident as they act. The thing is that I found my truck's transmission info searching the VIN number. Which means FACTORY designations. The codes they use at the FACTORY to determine what to put in. The ONLY difference between a 47RH and a 48RH is the OVERDRIVE unit. 47s have a 5-pinion planetary. 48s have a 6-pinion planetary. A LOT of AFTERMARKET parts sources DON'T list a 48RH. But they don't MAKE the ONLY part that's different between a 47RH and a 48RH. Which is that PLANETARY. Which you're not going to get NEW from ANYONE but CHRYSLER. Is CHRYSLER going to call it a 48RH? No. That's an "engineering term". The Mopar guy said so earlier. And it may not be in their parts computer or even a SERVICE MANUAL as a 48RH. They don't CARE about the model or engineering designation at a dealership. They look up parts by VIN number.
And THEY are going to ask for your VIN number when you go to buy one. My local Dodge dealer asks for my VIN just about EVERY time I go in for ANYTHING. Why? Because they made TWO different "2500" 4x4 Rams back when it was built. They made a regular-duty 2500 and a 2500HD with an 8800-lb GVW because they never made a 3500 4wd with SINGLE REAR WHEELS. A '94 Dodge Ram 2500HD 8800 GVW like mine was Dodge's substitute for a ONE-TON 4x4 with SINGLE REAR WHEELS. And because it IS an HD (right off the door jam sticker) it DOES have a 48RH (right off the VIN search) AND a NV241HD (right off the tag).
If I walk into my Dodge dealer right now and I tell them I need TRANSMISSION parts for a 1994 Dodge Ram Cummins 2500 4x4 the FIRST thing they're going to ask for is the VIN because there is a DIFFERENCE in the transmissions in the LIGHT-DUTY 2500s and the HEAVY-DUTY 2500s. And I know what that difference is. And I know why MOST aftermarket sources don't LIST the 48RH. Because they don't sell the ONE PART that's DIFFERENT. And THAT is the OD planetary. Of course most of these aftermarket parts suppliers and transmission specialists weren't even in BUSINESS when the 2nd gens came out TWENTY YEARS AGO so it's not surprising they're not listing a transmision they make NOTHING specifically for. EVERYTHING else in the transmission interchanges between a 47RH and a 48RH. And guess what? Putting a SIX-PINION OD UNIT in an 47RH is a common "upgrade". It's a DROP IN DEAL.
There IS one aftermarket transmission and powertrain company that DOES list the 48RH with ITS DEEP PAN that fits those transmissions. And that is ATS. How long have THEY been around? They were making turbo kits for 6.2 GMs and 6.9 and 7.3 Ford/Navistar engines back in the EIGHTIES and ATS was probably the FIRST company making aftermarket ANYTHING for Dodge 4-speed ODs. Snoking mentions a Mag-Hytech pan as proof there's no 48RH because they don't list it? Mag-Hytech is probably been around HALF as long as ATS. So it's NOT surprising that THEY list the 48RH as an application for their pan. But I doubt many of these "experts" have any idea that ATS has been around longer than any of the johnny-come-lately parts manufacturers. They have a pan that lists 48RH as an application because they were probably the FIRST outfit BUILDING performance 47RHs AND 48RHs back in the day. And no doubt they found out that Chrysler's FACTORY designation for the 4-spd OD automatic with the SIX-PINION OVERDRIVE is "48RH". And no doubt if your ORDERED a rebuilt transmission for your 2nd Gen "Dodge 2500 4x4 they were going to FIND OUT which you were sending BACK as a CORE before sending you one.
The reason all the "experts" claim there's no 48RH is because they've never seen the option codes from a Ram 2500HD. Most of them probably don't know there IS such a thing. I do. And when one of these experts puts his money where his mouth is and makes it worth my while to PROVE IT, I will. Otherwise, they can just keep believeing whatever they like. And I'll keep laughing. It's pretty obvious that they have done enough WORK or RESEARCH on their pickups to realize that the VIN number is the ONLY thing you need to make sure you get the right parts and if you DO use it you WILL get the right parts from a Dodge dealer.
So let them cry and whine and laugh and order me to provide proof and do and way whatever they like that makes them feel better about not having the sack to back it up with CASH. I KNOW that if I just copied and pasted an option list they'll just claim it's fake anyway, so why bother? If one of them ever happens to see the two OD units side by side or walks in their Dodge dealership to ASK, they'll know I'm right. I already do. I don't have ANYTHING to prove to "experts" online. It is funny that Snoking opened his mouth in the first place after assuming that because I asked a question about my 47RE and suggestions on quicker shifting and converter lockup that I must not know ANYTHING about Dodge transmissions. Yeah. That's why I bought the FACTORY manual for my '92 because none of the cheap parts-store Chilton or Haynes manuals COVER automatic trans repair.
And 47RHs and 48RHs DO have an electric solenoid. That's why they have an O/D OFF button. Do you notice how nobody wants to have an actual TECHNICAL discussion? That's because they're NOT as confident as they act. The thing is that I found my truck's transmission info searching the VIN number. Which means FACTORY designations. The codes they use at the FACTORY to determine what to put in. The ONLY difference between a 47RH and a 48RH is the OVERDRIVE unit. 47s have a 5-pinion planetary. 48s have a 6-pinion planetary. A LOT of AFTERMARKET parts sources DON'T list a 48RH. But they don't MAKE the ONLY part that's different between a 47RH and a 48RH. Which is that PLANETARY. Which you're not going to get NEW from ANYONE but CHRYSLER. Is CHRYSLER going to call it a 48RH? No. That's an "engineering term". The Mopar guy said so earlier. And it may not be in their parts computer or even a SERVICE MANUAL as a 48RH. They don't CARE about the model or engineering designation at a dealership. They look up parts by VIN number.
And THEY are going to ask for your VIN number when you go to buy one. My local Dodge dealer asks for my VIN just about EVERY time I go in for ANYTHING. Why? Because they made TWO different "2500" 4x4 Rams back when it was built. They made a regular-duty 2500 and a 2500HD with an 8800-lb GVW because they never made a 3500 4wd with SINGLE REAR WHEELS. A '94 Dodge Ram 2500HD 8800 GVW like mine was Dodge's substitute for a ONE-TON 4x4 with SINGLE REAR WHEELS. And because it IS an HD (right off the door jam sticker) it DOES have a 48RH (right off the VIN search) AND a NV241HD (right off the tag).
If I walk into my Dodge dealer right now and I tell them I need TRANSMISSION parts for a 1994 Dodge Ram Cummins 2500 4x4 the FIRST thing they're going to ask for is the VIN because there is a DIFFERENCE in the transmissions in the LIGHT-DUTY 2500s and the HEAVY-DUTY 2500s. And I know what that difference is. And I know why MOST aftermarket sources don't LIST the 48RH. Because they don't sell the ONE PART that's DIFFERENT. And THAT is the OD planetary. Of course most of these aftermarket parts suppliers and transmission specialists weren't even in BUSINESS when the 2nd gens came out TWENTY YEARS AGO so it's not surprising they're not listing a transmision they make NOTHING specifically for. EVERYTHING else in the transmission interchanges between a 47RH and a 48RH. And guess what? Putting a SIX-PINION OD UNIT in an 47RH is a common "upgrade". It's a DROP IN DEAL.
There IS one aftermarket transmission and powertrain company that DOES list the 48RH with ITS DEEP PAN that fits those transmissions. And that is ATS. How long have THEY been around? They were making turbo kits for 6.2 GMs and 6.9 and 7.3 Ford/Navistar engines back in the EIGHTIES and ATS was probably the FIRST company making aftermarket ANYTHING for Dodge 4-speed ODs. Snoking mentions a Mag-Hytech pan as proof there's no 48RH because they don't list it? Mag-Hytech is probably been around HALF as long as ATS. So it's NOT surprising that THEY list the 48RH as an application for their pan. But I doubt many of these "experts" have any idea that ATS has been around longer than any of the johnny-come-lately parts manufacturers. They have a pan that lists 48RH as an application because they were probably the FIRST outfit BUILDING performance 47RHs AND 48RHs back in the day. And no doubt they found out that Chrysler's FACTORY designation for the 4-spd OD automatic with the SIX-PINION OVERDRIVE is "48RH". And no doubt if your ORDERED a rebuilt transmission for your 2nd Gen "Dodge 2500 4x4 they were going to FIND OUT which you were sending BACK as a CORE before sending you one.
The reason all the "experts" claim there's no 48RH is because they've never seen the option codes from a Ram 2500HD. Most of them probably don't know there IS such a thing. I do. And when one of these experts puts his money where his mouth is and makes it worth my while to PROVE IT, I will. Otherwise, they can just keep believeing whatever they like. And I'll keep laughing. It's pretty obvious that they have done enough WORK or RESEARCH on their pickups to realize that the VIN number is the ONLY thing you need to make sure you get the right parts and if you DO use it you WILL get the right parts from a Dodge dealer.
So let them cry and whine and laugh and order me to provide proof and do and way whatever they like that makes them feel better about not having the sack to back it up with CASH. I KNOW that if I just copied and pasted an option list they'll just claim it's fake anyway, so why bother? If one of them ever happens to see the two OD units side by side or walks in their Dodge dealership to ASK, they'll know I'm right. I already do. I don't have ANYTHING to prove to "experts" online. It is funny that Snoking opened his mouth in the first place after assuming that because I asked a question about my 47RE and suggestions on quicker shifting and converter lockup that I must not know ANYTHING about Dodge transmissions. Yeah. That's why I bought the FACTORY manual for my '92 because none of the cheap parts-store Chilton or Haynes manuals COVER automatic trans repair.
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