Tranny swap help 5speed to 6speed AT
 

I have a 2003 4.4 i just bought with a suspected bad tranny. On hard accelerations the car slips and then shifts hard into 3rd and 4th. The abs, traction control and brake lights are on. Ive looked around and heard things about the abs module and what not. Checked the tranny fluid and its full, does need servicing cuz its black. I picked up a 6speed tranny from an 05 4.4 but after looking closley i can clearly see some issues. First my oil lines arent in the sames spots and the tranny data plug is on the opposite side. Any work around or am i screwed?


I plan on using the newer engine in a swap for my e36.

While it's not an impossible swap, moving from a ZF 5HP24 to a ZF 6HP26 is going to be a world of pain... there's more than just the physical items to deal with - there's also the transmission controller and software to sort - which might be very difficult... And I don't know if the transfer cases bolt up the same either (NV125 vs ATC500).

That’s crazy. Gonna say it would be a lot cheaper to get a different 2003 instead of trying to swap stuff that just will never work. Different engine, different software, different stuff bolts up. No way.

I only picked up this tranny because I got a good deal on it and i was told by the guy who sold it to me that it would work. He gave me the teanny computer ews and i have the motor i took it off of

If you place any value on your labor time or frequently need to drive your X5, I suggest selling the 6 speed and either rebuilding what you have if you can DIY or find a used same as what you have 5 speed if you can't DIY.

Impossible to swap.

You will need new engine, engine management. All of body harness. Facelift transfer case. Facelift driveshaft. Facelift front drive shaft. Facelift abs. Facelift abs computer. Facelift sensors and other computer.

You know what. Just get yourself a facelift 4.4 and that 6 speed will bolt up.

Your engine is m62, the 6 speed will fit an N62. I know it’s one letter, but that letter will cost you a new 4.4 to do what you want.

You say you have the engine, but do you have everything else I listed. That’s just the quick shit I came up with. There will be a lot more that you need to swap.

I may be able to get the rest of those parts from the seller I just don’t have the time to pull a swap off right now 😕 i just wanna sell it for the best offer now. I made a real ignorant purchase homies i messed up

Character building. We've all been there many times.

That’s for the best. Trust me. And as BC stated. It’s a lesson.

So i guess my next question is. Up to what year and models can i pull a tranny off of?
I found an 02 x5 4.4 but i see alot more 3.0s

If no one knows for sure, I would find one from same year, with same engine and same part number.

Try a PM to RRPHIL

Right attitude to have. As BC said, we've all been there. And no matter how old you are... there are always things to learn.

You are going to be looking for a trans from any 4.4i with an M62 engine in it. General rule of thumb is anything pre-facelift (also called pre-LCI) will work for you. So that would be 2000-2003 (most of 2003). There may be some slight overlap in 03 where very late productions were face lifted.

Oh, and if you pull that N62 swap off in an E36... would be awesome. :thumbup: But be careful you don't take a running E36 off the road for a pipe dream. If it's a learning tool... have fun!

Edit: Edited for clarification.

I may have learned something today myself. I was under the impression that LCI (Life Cycle Impulse) referred to the facelifted models. :dunno:

I worded that poorly. Sorry. I meant pre-facelift is equivalent to pre-LCI. My bad. Editing that post to avoid confusion. :thumbup:

Thanks. I thought I was having a senior moment. :nanana:

Man thank you all for your support i tried my best to not get myself bashed on here lmaoso i put te x5 down and i think im going with a rebuild kit for the tranny since i cant seem to find any donors out here now (socal) without some tranny issues or someone parting for a decent price. And for the e36 swap that lil beeoutch was already down but i may need to get her on the road just to have wheels, only needs a head and radiator :p once i get the x5 back up ill tear down the e36 for the n62 swap w/6speed tranny HOPEFULLY ��

Ok guys i found a similar trans but i want to confirm if anyone knows. I had found a donor car but as soon as i went to the junkyard they crushed the damn thing so i lost out in that. I did a little digging and Saw the 740 has the same tranny but in other variations. Just wanna know if i can use something else. Thank you guys

E53 x5 4.4
Tranny: A5S440Z; 24001423950 UP
TQ: 24401423952

E38 1998 740il
Tranny: A5S4407; 24001423193 TB, 24001423305 TF(shorter final drive)
TQ: 24401422107, 24401423306 (shorter final drive)

Clearly the biggest difference between the 740i and the E53 versions of the 5HP24 is the fact that the former is RWD and the latter 4WD. This is achieved by replacing the back end of the RWD variant with an adaptor plate and intermediate shaft so that it couples to the New Venture Gear NV125 transfer case.

https://i260.photobucket.com/albums/...ps3cce59ad.jpg

https://i260.photobucket.com/albums/...psbdfb32a8.jpg

The transmission maincase is also different because the selector lever and inhibitor switch are both mounted on the left-hand side for the RWD versions whereas the X5 has the selector lever on the LHS of the casing but the inhibitor switch is mounted on the opposite side. The torque converter is also different, so converting a 740i transmission to fit the X5 is not a practical proposition.

The difference between the RWD versions with the ‘sport’ final drive ratio is only the torque converter. None of the transmission internals are changed e.g. 016 (TB) vs 018 (SH) or the 021 (TE) vs 022 (TF).

Clearly the 3.5 litre transmission models have many differences due to their lower torque capacity (fewer clutch plates in the D & E clutches, etc.) so are incompatible with the 4.4 litre versions.

In summary, you have to replace your 029 (UP) transmission with another 029 (UP) transmission. Clearly, the later the transmission, the more of the development fixes/improvements that took place over the transmission’s production life will be included.

And don’t think a 034 (UK) 4.6iS E53 transmission is suitable for a 4.4i either, because there are a number of important differences there, too :)

Phil

Genius. Im abandoning all other options besides getting exactly whats in there XD lmao ill post when i that thang up and pulling again. thank yall so much