(retro) Slushbox Question.

It's been a long time since I was under a Capri but I think the best bet is to remove the bottom pan,drain all the burnt fluid out,if there is ANY fragments of anything in there you have a shot tranny.If itr's Clean,with NO bits,get a filter kit and change the internal filter,you should get the fluid cooler lines flushed out,fill with new fluid.What i would also do in your case is buy some Lucas Automatic trans stop leak fluid.It works brilliantly on old slipping trannys.

I'm not familiar with the stuff mercmad recommends, but I might need some of that myself.

The clutches can be worn out with out depositing much if any stuff in the pan.

The fluid should be red like blood or cherryade or whatever. It should smell nice and feel viscous (you will get it all over your hands). If its black, brown or yellow is sticky or gritty or smaells bad then the fluid is gone, but changing the fluid may not help you, it is usually a symptom of something else.

i don't know anything about Capri boxes ;D but if it is a belt driven box, then these belts can be tightened.... though if the oil smells burnt, then it could be too late.... i have just refurbished an VW autobox, which is belt driven and i was lucky.... though i like driving cars with automatic transmission, i hate to repair/remove them....

Did you notice any "bits" in it?

low fluid level will cause slipping, I assumed you'd checked that first!

remember that autobox fluid usually has to be checked with the engine running and everything up to temperature