Its defiantly worth it. The instructions included are a bit confusing but not too bad once you figure them out.
I believe I may have found it in the transgo 340-HD2 reprogramming kit. From what I have read in Dirtyfingers build thread and on some jeep forums the kit seems to work very well and produce the same results as ipt’s valve body upgrade. And for 100 dollars and a day’s worth of work it sure beats 600 and a week waiting on shipping. The only problem was that there is hardly any info on the thing besides a few jeep forums and some crappy youtube videos of a guy in a Lexus, so I’m planning on fixing that with the write up and some before and after videos. Hopefully this will help others that are looking to increase the performance of their 3rd gen auto trans without paying in body parts.
So I just got off the phone with Trans Go. Asking about my issue with what feels like a throttle plate closure just after the 1-2 shift. I wanted to double check that I didn't install something improperly. He said no, he couldn't think of anything I could do to cause this issue.. and he also feels that it's the ecu partially shutting the throttle during the 1-2 shift, and is now mis timed because it shifts so much faster. He was going to talk to some people in the know and call me back to try and confirm this.
My next step is too get something I can log throttle plate position with, as my ultra gauge doesnt refresh fast enough to catch it..
So nothing concrete yet.... sounds like I'm the only one with this shift kit and DBW (I guess that is quite possible).
[MENTION=121903]Black798[/MENTION] how do you like it so far? I'm really thinking about doing this, I just added a small pulley and methanol injection so my 4Runner really scoots.
So far I'm loving it even though I don't have a supercharger, I have close to 4,000 miles on the 4runner since I did this and have zero complaints. Fluid still looks brand new and the temps have always been in an acceptable range (120-200). I really love the feel of how the trans hooks up right away at the shift point and there is a definite decrease in slippage. If your pushing more power through the trans with the supercharger an meth injection I would highly recommend this. It will make sure your 4runner is able to scoot for many more miles rather than burning up the second gear clutch pack. I know for me if I ever supercharger, probably will if I make the jump to 33s, I will be glad I did this just for peace of mind.
Ill have to look and see if I can find the receipt from when I got it. I also wasn't able to figure out the part number so I ended up calling the place I listed in the write up and had them look it up for my vin. Ill let you know if I find it.
EDIT:
Just looked up the receipt, for a 98 3.4 V6 you will need P/N 35433-30064 and P/N 3543-30076 for the two valve body gaskets
You are awesome. That second P/N doesn't show up, is it missing a digit?
Thanks. I tried a few numbers but couldn't figure it out!
What do you think of the transmission and drive ability after the install though?
Back on the road! If I ever see a valve body again it will be too soon. Oh wait, there's one in my backyard...
So here's my thoughts on the installation. This really is a "professional" install. I've never worked on a transmission before and I had thought I knew what to expect and how to do it after reading the instructions a few times. I was wrong! Here's a few tips for anyone looking to do this:
- In the kits, there's 4 different valve bodies. From what I understand, our 4Runners have three dfferent kinds, 96-98, 99-00, 01-02. Of all the photos of a 98 on the inside I could find, they were ALL different with the locations of the check balls and metal retainers. Not one was the same, which leads to my next tip:
- DO NOT DROP THE VALVE BODY ONCE OPEN. The valve body splits in half, a larger lower section and an smaller upper section, separated by a metal plate which serves as a fluid passage and a gasket. Once you remove the screws and lift the separater plate off the lower sections, there's nothing holding it on the upper section and it will slip off with all that transmission fluid sloshing around. I accidentally had it slip off and all the check balls came out.
- If you are unsure where the check balls go like in my case, the instructions are confusing. That's my only qualm with the kit. Because there are so many variations, it just says "check ball location may vary". If that happens, just stop and ask for help... I tried to interpret where they should go and just put it back in how I thought and it drove terrible. The clutch would not engage, felt like I was just driving it around like a manual with the clutch half-way in. Was almost undrivable because I misplaced ONE check ball.
- I would take a photo of each step, valve body in the vehicle, out of vehicle, open, springs in the accumulator, etc so you have a frame of reference. Once you take it apart and start replacing stuff it's extremely hard to figure out what was stock and what was not. I started doing this but once I dropped the upper valve body it was all downhill.
- Be sure to get a good in/lb torque wrench. I bought a cheap 1/4 in drive (I have a socket adapter to fit my 3/8 sockets) from Harbor Freight that worked perfect. You really do need this, if you strip the valve body bolts you're screwed. BTW 3 of my transmission pan bolts were already stripped... dang, that must be why it leaks.
My final thoughts: transmission are really made of magic and pixie dust. I will never work on a valve body again, it really is complicated. I've rebuild engines, tuned a supercharged vehicle, worked on electrical, wires my own lights, etc. etc. but transmissions really are confusing. I thought this would be a walk in the park for me, boy was I wrong.
I've only had it fixed for a couple of hours so I'll update this post on my thoughts about how it drives once I have a good chance to take it out. Big thanks to [MENTION=121903]Black798[/MENTION] for answering my desperate texts on what the heck I did wrong!