Superior shift correction kit

[TerranoNZ]

As most people know my trans blew up a while back and I've been rebuilding it myself. After getting the torque converter rebuilt (That was what blew) I ordered 2 shift kits and a few remaining bits I needed.

I can't offer a complete how to, but with the FSM it's pretty easy to pull the trans apart. This is more so people can see what's involved before taking the job on.

 

Should you do it? Well I've rebuilt a few engines in my time, I've a pretty good mechanical understanding. I've got the FSM to work from, without this I wouldn't of started it

 

This is what you get in the kit + instructions. *The 0.041 drill bit arrived broken, but was not a big deal as you only need that for the "Heavy duty" option.

 

 

Tools you will need: Basic tools, socket set, spanners, cir clip pliers that sort of thing.

Vernier calipers

Power drill

Parts wash

 

Step 1: Cross drilling through gallery

 

As per instructions, remove the pressure regulator valve. Some of the valves were hard to remove. I had a magnet that was too big to fit inside.

But with a cunning plan

 

 

Using a pin as an extension I was able to get the steel valves out easy.

 

 

 

Place the body protector in place.

 

 

Use the 0.062 drill bit to drill through the body wall.

 

 

Clean out the body with parts wash, make sure to debur the hole on the other side.

 

 

Step 2: Pressure valve spring

 

Measure the spring, if in spec as mine is add little blue spring. (Blue)

 

 

 

Step 3: Sequence & Relay valve

Remove the valves and replace separator plugs and pins. (Red)

 

 

Be sure when reinstalling that the springs are seated on the clips correctly.

 

[TerranoNZ]

Step 4: Pressure modifier

 

Remove and inspect for cracks. (Yellow) Don't really know why that's part of a shift kit

 

 

Step 5: Modifier accumulator

 

Remove and inspect for cracks.

 

Step 6: Drilling separator plate Let the fun begin

 

Drill as per instructions either Regular duty or heavy duty. I went with Regular as this is my DD and I read that someone went heavy and thinks it shifts too hard.

Debur all holes and clean swarf.

 

 

Step 7: Put the valve body back together

 

As in FSM

 

Step 8: Replace accumulator seals

 

As pic these are Teflon seals not O-rings, hence the split in them. 2-3 &1-2 Accumulator only (4 seals)

They are a PITA to install. Use petroleum jelly to hold them in and quickly push them in, but don't push too hard.

 

 

Step 9: Replace accumulator spring

 

New spring is red colour.

Very hard

 

 

Step 10: Replace Servo cover gasket

 

Pretty straight forward, Torque bolts to 11.5Nm (100 In/lbs)

 

 

Step 11: Orifice plug

 

My case doesn't have the plug or ball in question, so I'm done here.

 

 

Step 12: Replace rings on stator support shaft

 

2 large and 2 small.....Easy, just careful of the Vaseline

 

 

DONE Now cross your fingers it works

[TerranoNZ]

Here's the instuctions

 

[Precise1]

By what you have posted, it sounds easy. It must be getting there and putting it all back that is difficult...

 

Good luck, I want to see this thing running...

 

B

[TerranoNZ]

HE RUNS, HE RUNS

 

Small/easy problem fixed

 

Shifting seems better....Wont really know til I put some mileage on him.

[DavefromOZ]

 

Great job Tex, not many people would try to tackle that job

[Simon]

Well done Tex. I echo Dave's statement above.

[adamzan]

Tex, how has it been running?

 

Also I want to get a crapped out wd21 auto and fool around with it and learn. And possibly install one of these kits...

[TerranoNZ]

My bad Adam... I missed your post, better late than never

Shifts really nice, Hard shifting seams faster and gentle shifting is sometimes unnoticeable.

I wish I could post a vid, but it's really one of those things you need to feel.

 

 

 

That's a damn good idea

[madhornet]

can this be done in the truck

[TerranoNZ]

Only steps 11 & 12 have to be done when the trans is out. I really think you won't notice the difference though