Options for an A4LD swap...

[Gadget X]

Okay, I was doing a little looking around online because my second A4LD is already feeling like it is starting to slip, and I read that the 4R55E tranny is mechanically identical to the A4LD. Does that mean that I could feasibly swap the two, or is there an issue that I haven't taken into consideration? Would I need a new computer, and would everything (transfer case, etc.) bolt right in? I did a search, but the answers I found were less than conclusive. I am just getting sick of working on the A4LD and would like to just drive for a while without having to crawl under the ex and take a bath in tranny fluid every time it acts up! Thanks in advance,
Jason

 

[BrooklynBay]

The 4R, and 5R transmissions use electronic valve bodies, and other sensors. You would need an entire wiring harness, computer, and possibly have to switch a few things on the engine. Just rebuild it with 5R parts to make it into a Frankentranny to avoid electrical gremlins from popping up. Another option is to get adapters to use a 700R4 or follow the sticky on the 5R55S swap.

 

[Gadget X]

Do you mean use 4R55E parts ot rebuild the A4LD? Will I need to get both rebuild kits and then use what fits from each, or do I just need to get the 4R55E rebuild kit? Also, is the 700R4 a lot better than the A4LD?

 

[BrooklynBay]

The sticky called Project Frankentranny has the information you will need to swap these parts into an A4LD. The 700R4 is used on a GM V8 engine so it's made to be stronger, but it requires special adapters to make it fit. I think you are better off making an A4LD Frankentranny. The 5R55S swap is another option which you could read about in the sticky threads.

 

[X-North]

I have chance to get a 4r55e for 100$ rebuilt last year for 2000$ but the guys still have the bills an dont need it anymore.What are the sensorss that are different form the A4ld and the 4r55e ?? Can i just swap the valve body so it will eb mechanical again like the a4ld ??

 

[BrooklynBay]

It's more complicated that just swapping a valve body. The internal passage way which looks like a map is different on both transmissions.

 

[X-North]

So even if i pay 100$ for a rebuilt tranny it dont worth the job?

 

[BrooklynBay]

You could use it for spare hard parts for the A4LD if you want to make a Frankentranny.

 

[X-North]

how much could i resell it ?? for 100$ a rebuilt tranny its damn cheap so i could make money from it heheh

 

[Josh]

Well if they only want a 100 for a rebuilt tranny, then it is probably a soft rebuild. I would try the Frankentranny.

 

[X-North]

it was rebuild with the modified valve body for off road application and other but the guy trade this 4r55e for a 5r55e because he go from v6 to v8

 

[Jack Flash]

it was rebuild with the modified valve body for off road application and other but the guy trade this 4r55e for a 5r55e because he go from v6 to v8

?? that's a new one for me. I didn't know there was any adapter to fit a 5R to a V-8. what engine (V-8) was he using ? what kind of vehicle did the 5R come out of ?

.....jjf

 

[X-North]

I think hes running the 302 engine but dont as me how i dont know This guy must be a genius or did the parts himself.