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Got around today to put together the flexplate and ring gear which are glue to the face of the ring gear just to hold it in place for assembly , use the flexplate ADAPTER to sándwich it all togethere to cure , used all 12 bolts and torque to specs, hopping next weekend i can install it. More...

Finally install the PTO now will try to borrow a jack to install it , more to follow...

Not cheap by any means but needed for the job, i got everything from Weller Truck parts in Michigan with the help of Joshua in the Allison Dept his knowledge is great. There is a rear support needed if not ussing the front support will post the number and picture when i get it...

Finally got all the parts needed to connect my 4500 RDS to the big CAM but will work on any 855 to N14 family and with any 4000 series Allison, here is a list off all parts... # 29505969 GEAR FLEXPATE 103 Teeth #29505976 FLEXPATE x 3 #29505977 HUB ADAPTER #2950578 WEAR PLATE #29505968...

Got another 4500 RDS for future projects

Finally getting the group converter parts and bolts together will post some pictures and parts number here in the next few weeks ...

Getting 4500RDS ready

Disregard i got the engineering drawing with what i need will try to figuere it this weekend thx for sll the help

In that case would you be Kind to provide me with the serial numbers from those 2 transmission HD4050 and the 4500SP maybe i get Lucky and in Allison Hub they have the Torque conveter group for cummins BC which is what i need.. Thank you

Ok thank you for the update

I look at al the TMS here and have downloaded before and sure it mentions the HD4060-70 but maily they are for replacing sensors, harness , inteligente. Tcm ect but nothing on replacing transmission try to located parts manual but no luck did find some pictures where it shows the ring gear on...

Thank you for the reply A4 are Detroit 60 series engines which i am very familiar with and the set up is like the Volvo Cummins ISX engine as well the Cats mayme will look in to TM on M917 that had more módem Allison ..

I guess no one knows , more to follow

Just looking for pictures of the late electronic 4070HD apart from the cummins BC3 to see how it was connected to engine , i think i can figuere out this weekend side by side if not will make a trip to local Allison dealer but does guys are useless you had to bring them all the group # for the...

More pictures

Being working on this for a while gathering parts and other things, i have done this to a few Cat 3406 with great success. Finally yesterday was able to take off the Allison HT 754 i belive its call that which takes me to my question , i know some of the lates M917 had i belive 4070 HD...

Thank you

Could not find one to buy so made it

Some pictures

Some pictures