Transmission Question

I guess an easy question to ask would be

Is it full, roughly 1.8 to 2 quarts ?

I see you asked this question last August too about rebuilders, (and got no answers) I don't know any in NC but I'm sure somebody will chime in.

At least this time you have one response though

I imagine it slips on takeoff since that's when the load is the highest.

How many times has it slipped, is it every time you take off?

How much run time since the slipping issues

Brace yourself cause some guy named Pete will come along and grill you on what kind of ATF you used

response time 4 minutes Pete not bad

Looking at old posts, I see that you had synthetic i it for a short time a few years ago, replaced it with normal Dex 3 or whatever, then got water in it later and did a lot of flushing.

It probably won't help but I'd idle it around for an hour or so and get the fluid warm, shifting it frequently in and out of gear and going into reverse too. Give them clutches some exercise.

You have nothing to lose by doing this except maybe an hour of your time, Make sure your paddle works or have somebody with another boat tagging along just in case.

Then try taking off again

Does it slip in reverse too?

How many times has it slipped on you?

On another thought, have you ever heard the noise a bad damper plate makes,?

A slipping transmission makes a racket and so does a damper plate with the springs going bad. To me the damper plate makes more metallic grinding type noises and the clutches slipping are a loud groan.

If it did the same thing in reverse there would have been a good chance it was the damper plate.

Cheaper and easier, but no such luck I guess

Well your forum nickname does not explain if you are a racing fan or racer that is mechanically inclined..   If you are the latter then maybe you could beat the labor costs by doing it yourself. I just rebuilt mine and it's not as hard as you think. If you don't know one end of a screw driver from the other then I would farm it out.
Kit will run about $150.00. Takes about 3 hours. There are still service manuals available along with pictorial manuals on line. Mastercraft forum has a good pictorial on rebuilding one. We just posted the site a week or so ago.
And don't let anyone kid you, KENO is more than capable of doing it but he as well as alot of the rest of us, has already got a full plate. Good luck and keep us posted..
A picture of the tranny plate would be helpful.

If you have that background, i believe you can do this.

First put a pressure gauge on the test port, and check line pressure. That will tell you if you have to replace the pump or not.

Then source snap ring/seals/front seal /oring kit, new reverse and forward plates, and i used a shim kit to get the forward pack stack height in spec.
My belleville washer had a good groove cut in it from the worn forward pack, so i needed one of those too.
A good set of snap ring pliers and a nice clean bench, i think you you got this.
Take notes and pictures, use the shop manual from this site's reference section.

Taking the thing apart in a plastic mortar mixing tub from the home center, collected the fluid and caught small parts, and eventually its broken down and cleaned up , remove the tub and oil and stank, then just working with the bare unit and assemblies on a clean bench.