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The two transmissions I am swapping connect differently to the drive shaft. I didn't think to take pics of the RedCross ambulance's driveshaft, but it's the one laying on the dolly in these pics and you can see the rear shaft housing and a big round drum thingy behind it. The other two pics are the bus with the bad tranny. It doesn't have the round drum thingy, and ifurther back the driveshaft, it has what I think is a different "carrier." I don't recall the big turbo looking fins on the other bus.
I was hoping these were plug-and-play. Any advice on what I have to do to the RC transmission to make it connect to this bus' driveshaft?
I'm thinking there would be a difference with the bus having, in an earlier life, a wheelchair lift, with a parking brake interlock system. It appears that the drum thingy bolts one right at the point this bus' driveshaft bolts on, such that by removing it, the current driveshaft bolts on.
This is a driveline parking brake, used in applications where a more secure parking condition is needed then the DIH parking brake at the rear rotors. It's actually what I thought and often commented on should have been used with all the DRW trucks,
The driveshaft lengths are going to be different for each, I would expect. What will be interesting is if the vehicles have different wheelbases. For your vehicle that you are trying to get fixed, the old trans tail may have to be installed on the trans you brought up. Mark might know if they are swappable.
This is a Telma Retarder and should have an electronic control in the cab. It's used to assist in braking effectiveness. https://youtu.be/5FMoUEmSsdE
This is a driveline parking brake, used in applications where a more secure parking condition is needed then the DIH parking brake at the rear rotors. It's actually what I thought and often commented on should have been used with all the DRW trucks,
The driveshaft lengths are going to be different for each, I would expect. What will be interesting is if the vehicles have different wheelbases. For your vehicle that you are trying to get fixed, the old trans tail may have to be installed on the trans you brought up. Mark might know if they are swappable.
Thank you, so much. I'll PM El Maestro. That's what I figured - I'd have to pull the driveline brake off. It looks like the one from the ambulance simply has no tail, that the driveshaft connects right there to whatever the driveline brake attaches to inside its housing. But, I'm just looking at this pic. Need to go climb under it again.
Do you think that driveline brake would swap over to another truck and add value, or would the cost to shorten the driveshaft not be worth it?
I never played with retrofitting that brake, I just know of it. For those that want them, like someone who has gone submarine launching a boat, the driveline brake is valuable. I believe Diesel Redemption used to get good money for them.
The Telma Retarder can be a good addition if you are towing heavy through mountains, but you have to understand that under low traction conditions they have to be turned off as there is too much braking on the rear tires and you can go sideways without the proper tire loading.
The big question is if the output shafts are different. If they are, you have problems. If they are the same you can swap that external housing on the end of the trans with no problem. Measure the length of the shafts from the rear face of the case (not the extension) and see if the splines are the same. If they are the same length and splines you're golden. If they are different you have to swap the output shafts. I don't remember if you can swap them without taking the whole trans apart. I know on the 4R100 you had to disassemble the entire trans to swap the shaft, but I can't remember if that is also true on the 5R110W.
Oh my. Thanks, Mark, Jack. I need to get the extension off the RC trans and measure its shaft and splines. From the pic there doesn't appear to be an extension on the blown trans w/the Telma. It looks like the drive shaft bolts right up to the output shaft. So, I assume there's a yoke on a ujoint that slides onto its splines. So, after I remove the rear housing on the RC, as long as the length of its shaft and its splines match up, the yoke on the driveshaft should slide on it as well? Hopefully find out tomorrow.
Thanks guys!!! The output shafts for the two transmissions were a match. I swapped the yoke off the blown one and the replacement is ready to go in the truck tomorrow. Do either of you want this driveline brake (the round drum in the pic above)? Send me a PM with a shipping address. Looks like it prolly costs money, but I haven't looked for a part number off it.
The big question is if the output shafts are different. If they are, you have problems. If they are the same you can swap that external housing on the end of the trans with no problem. Measure the length of the shafts from the rear face of the case (not the extension) and see if the splines are the same. If they are the same length and splines you're golden. If they are different you have to swap the output shafts. I don't remember if you can swap them without taking the whole trans apart. I know on the 4R100 you had to disassemble the entire trans to swap the shaft, but I can't remember if that is also true on the 5R110W.
It's a mixed bag on the 5R110W. I think some of the two wheel drive output shafts are different. If I remember correctly, the E-250 and E-350 single rear wheel use a slip joint at the transmission. Pretty much all other 5R110W transmissions have a fixed yoke. The fixed yoke output shaft would be the same as a 4x4, while the slip joint will be different.
