some time i call it tcu, and other times i call it a tcm they are the same
this is from google
More images for transmission control unit location
What is a transmission control module?
or are you asking what comes with the diff.

$3780.00 includes Diff, TCU, Wave-trac, and shipping to you, ready to install .
core charge is in that price. "" you keep your TCU and Diff ""
if you want to trade in your diff and TCU, the price drops to $3280.00
if you already have a wave-trac,send it to me and I use it, and trade in your Diff &TCU , the price drops to $2280.00
any questions pm me, shipping in the USA only. jim,,, OH just re read the post,, 327,,or 3.46

 

No - your sign indicates you have a 3.27 in at the moment - why not upgrade...?

 

sorry I understand now, signature, because i do not have any track results with the 346, ,, because of the prostate i have not been to the track this year but in Nov. i will and will update then, thanks bob for bringing that it my attention

 

yes - prostates....better off without them.....

 

You are missing something billybob..... I would love to race your slk.... lol....

OK, I will add my thoughts at this point to this old post. I wasn't able to run the drag radials, as I haven't had them on in 3 yrs. I just didn't trust them at this point. So, I put the roadster dunlops on the coupe and roasted those for 7 passes. And that is all I did. Launch easy, launch hard, it didn't matter. I even did a dreaded roll start, and went sideways in a hurry. Now the car launches fine, but spinning in 1, then 2, finally catching in 3, playing catch up, having a "delayed", yes delayed, 4th gear shift, and then a slow steady pull to 5000 rpm and you are at a ridiculous 135.2977 mph. So, yes, this weekend sucked big time. Now, we aren't done, as remember, I want a 1/4 mile car, not a 1/2 mile car. I will figure this out, but holding any judgement until I can test at the drag strip hopefully this week, with the drag radials on. I had some impressive burnouts, but that doesn't make you quick.

Now for the half mile event. It is literal filled with highly ($$$$) modified cars just for that event. Certainly no stock cars there. Even the ones I might have a little chance at running with were modified to some aspect. A lambo went 216. Still had fun...but back to the drawing board.

 

Sorry to hear about the disappointment in your post. No way to know where you are for sure until it hooks up and goes. Honestly, I have trouble getting going cleanly even with drag radials. I suck at it. I've concluded that the slow shift isn't as big of a deal as I used to make of it. The cars still pulling even though it's at a diminished hp level. 135 mph does suck though. I know you've got a 140 mph 1/2 miler. Post up the 1/4 mile adventure once you've had it. I'm curious and considering returning to the 1/4 and 1/2 mile events and retiring from the road racing.

Les

 

Hey Doc !
Maybe THIS is what you need :

 

Awesome Car...Make it happen..Squirrel Crusher

 

Hey George, you forgot to hold your hand out straight, and drop the microphone... BAM! Way too funny! I love it!


.

 

I wish I needed that. Track day cancelled today. Once the drag radials went on and we could actually launch this puppy, it didn't want to shift right. So this TCU gets a new tune. It was set up for the new valve body with higher pressures. They thought I was installing it right away. I didn't so I will see if another tune helps. Would have been a excellent debut at the track. Cool temps and sunshine all day. So, if that doesn't work....not sure what I will do. Very disappointed at this point. It comes out of the hole as best as any car I have ever owned, but it has to shift. I will keep you all abreast of the situation. But we are no where close at this point. Now normal driving is fine.

 

Well, was hoping for a TCU change so I could run Saturday. The tracks around here are closing for the winter. So, once I get the new tune, I will have to trailer it south to find a track. Need to figure this out before snow flies. I have some other mods to do over the winter to get ready for a full season run at the drag strip. 1/8 th mile track is a half hour away from me. So I will run there most of the time. Check in next week. May have to run in TN.



Update:::new TCU installed and shifting seems normal again wont be able to tell until weather straightens up but it is shifting.