8 Speed Tranny concerns.....???

[Wild one]

There are 2 versions of the 8HP. The 45 is built here, the 70 is not.

Unless the window sticker on my '17 Big Horn is lying, my 8HP70 was built in Germany. I suppose its possible SOME are and SOME arent, but Im pretty sure the -70 variant is exclusively made in Germany.

You're window sticker must be different then mine,as all mines states is it's the 8 speed,nothing about where the tranny was built.

Read the section right under the video,about where the transmissions are made.

https://www.youtube.com/watch?v=dLsdrHqQl7c

A video of them at the transmission plant in Indiana

https://www.youtube.com/watch?v=447sSED91v0

 

[Tach_tech]

As far as I know,you got it backasswards Dan,lol


Chrysler Group LLC initially received the 8HP 8-speed automatic transmissions from the ZF plant in Saarbrucken, Germany. By 2013, in parallel with Chrysler Group, ZF had set up a new transmission production plant in Gray Court, South Carolina.[7] ZF Friedrichshafen and Chrysler Group have reached a supply and license agreement for the 8HP. Chrysler Group is licensed to produce the 8HP at the company’s Kokomo Transmission Plant and the Kokomo Casting plant, production began in 2013.
2nd generation 8HP products were released starting in 2014. Efficiency improvements over the original design include a wider ratio spread of 7.8:1, reduced drag torque from the shift elements, reduction in required oil pump pressure, and broadened use of the coasting and start-stop systems.[8] ZF estimated fuel economy improvement over 1st generation 8HP kits to be 3%. Refinements were also made with respect to vibration.

HA, I doubt it lol, I thought I was wrong once but it turns out I was mistaken lol. I wasn’t as clear as I should have been, if it’s a 8hp45 or 8hp70 it’s built by the Germans. If it’s the 845RE it’s built in Indiana. The RE part is Chrysler terminology that’s been used for years, usually it was RFE which meant Rear wheel drive Full Electronic.

 

[ColdCase]

2nd generation 8HP products were released starting in 2014. Efficiency improvements over the original design include a wider ratio spread of 7.8:1, reduced drag torque from the shift elements, reduction in required oil pump pressure, and broadened use of the coasting and start-stop systems.[8] ZF estimated fuel economy improvement over 1st generation 8HP kits to be 3%. Refinements were also made with respect to vibration.

According to what I read on alpar and other news sites years ago (so my memory may be fuzzy about the details), FCA did not roll out the 2nd gen when it was released. BMW and some others rolled them out immediately, but there are issues with gen 2 in a truck where some engine braking is desirable, as there were modifications to coasting function as well as some gear components. Not all manufactures embraced the gen 2. As far as I know, both gen 1 and 2 are still being produced. Dunno what gen is currently in the RAM, Jeep didn't start using Gen 2 in some models till the 2017 model year I think.

 

[chrisbh17]

According to what I read on alpar and other news sites years ago (so my memory may be fuzzy about the details), FCA did not roll out the 2nd gen when it was released. BMW and some others rolled them out immediately, but there are issues with gen 2 in a truck where some engine braking is desirable, as there were modifications to coasting function as well as some gear components. Not all manufactures embraced the gen 2. As far as I know, both gen 1 and 2 are still being produced. Dunno what gen is currently in the RAM, Jeep didn't start using Gen 2 in some models till the 2017 model year I think.

I believe gen 2 is a slightly different model number (8HP75 instead of 8HP70), and the bunch of MY17 trucks I looked at none of them had the 75.