Convert A442F to full-hydraulic? (from electric)

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

N

Nickelaus

Joined
Jun 7, 2017
Threads
8
Messages
34
Location
Austin
Is it possible to swap the valve bodies so that you could make an electric-controlled A442f transmission to be full-hydraulic only? I would also be converting to the correct shift lever as well.. Any insights if this is possible?
 
Last edited:
I think the A440 has hydraulic passages on the rear end that the 442 does not have. I don’t think A440 valve body will transfer to the A442. But it might be possible to put an A442 hydraulic valve body in the electric one? Not sure. I do know someone with more knowledge than I will chime in. Lol.
 
OK, thanks. yeah I think the model #s are the same, A442f, just maybe the difference of electric or hydraulic control (?). It looks like from some other comments I found on the net that it may just be the actual control mechanisms that are different (solenoid vs hydraulic servo valves). That person in the other case was looking to go the opposite direction, hydraulic to electric.
 
Last edited:
You never said why you wanted to make the change from electric to Hyd. so why the change?
 
I’ve heard that the hydraulic torque converter and gas won’t swap on the A442. So I’m sure there’s differences. Not sure how many.
 
bump on old thread i'm still interested to see if there is a answer to this.
 
i am also interested in knowing the answer, as i have put a A442f electric gas onto my 1hdt (that had the A440f hydraulic) thinking that the 442f was the hydraulic model comming from a 92, but it is not. has the 1hdt converter. fits goes and runs just wont shift gear and does not have any over drive 4th gear
 
just did a quick search looks like the cases are different part numbers so i can only assume there different. need someone to confirm

electronic
35104-60100

hydro
35104-60020
 
Worked it out cheers. The anwer is no as the electronic one has over drive and that is a planetary gear on its own. I am going to turn mine into a tiptronic only for a while
 
A442f full hydraulic valve body has some different springs and valves. The governor springs are different, the pump gear is essentially the same, the torque converters are different. As stated that all means nothing due to one having overdrive and the other not. An earlier A440f from a 62 or fj80 could work though.
 
arnoo said:
i am also interested in knowing the answer, as i have put a A442f electric gas onto my 1hdt (that had the A440f hydraulic) thinking that the 442f was the hydraulic model comming from a 92, but it is not. has the 1hdt converter. fits goes and runs just wont shift gear and does not have any over drive 4th gear
Click to expand...
Hey mate. I just did this same thing out a newer a442f onto my 91 that had a hydraulic. When i put it in D its like its taking off in 3rd gear but if i take off in 1 2 D drives fine. Is there a way to fix this
 
huseyink88 said:
Hey mate. I just did this same thing out a newer a442f onto my 91 that had a hydraulic. When i put it in D its like its taking off in 3rd gear but if i take off in 1 2 D drives fine. Is there a way to fix this
Click to expand...
install the different gear selector, wiring harness, ECU from a 93-97 or get a 90-92 hyrdo trans.
 
You must log in or register to reply here.

Share this page

Back
Top Bottom