On this forum Mal suggested Shudda-fix to stop the shudder at 65kph in top gear, (TW, auto). I put some Nulon trans fluid into the trans, which 90% fixed it. The Shudda-fix I ordered on Ebay finally came from the US ($5 there + postage; was quoted $45 here) and it has 100% fixed the problem.

Much cheaper than a new trans. V. pleased with result.

Link to item? Does the seller have more, all the listings i can have have ridiculously expensive shipping.

Thanks

I sent it to a virtual address in Torrance, CA, using ShipitTo. The shipping to CA was free and it cost $12 for shipitto to send it to me. Took a month as they sent it via Sweden (I kid you not).