I have a BW65 of P6 in stock, and I just wanted to know if there was a better comfort of use and reliability than BW35!? Stef
It's a more reliable box, even though it uses a lot of the same internals as the BW35. The servos are integral to the casing, so the BW35 rear servo problems are a thing of the past. Probably the one weak point on the BW65 is they have "anti-bump" on the front clutch to soften the engagement and that is prone to failing. If you're really keen you can subsitute the BW35 front drum to eliminate that problem. The 65 is a bit more difficult to fit in the P5B as it has to be fitted as a complete unit with the bellhousing and the converter. You'd have to do some simple fabrication to make a rear mounting using P5B and P6B bits, and ideally use the P6B selector cable which would need a mounting bracket on the underside of the tunnel. It's all a bit of work to still end up with a 3 speed, but if you have a good unit under the bench, can do the work yourself, and intend keeping the car happily using a 3 speed, I'd say it's worth doing.