My 72 is going to be getting a new heart, bye bye to the 1600, hello to a 2L type 4. To be honest, the 1600 isn't actually that bad, but I use the van for a lot of road trips and just want a little more grunt and reliability, so I'm getting a type 4 2L rebuilt. The engine will be basically original spec apart from a cam, better carbs and distributor or even EFI but think that's out of my price range at the moment. It will also be getting new shoes, I use the van mainly for road trips and plan to venture more onto red roads/beaches here in WA so I plan to move to ~28" rims, I'm thinking at the moment of using 215/75/15's on some Merc 15x6.5 et37 rims I have. For the transmission I have a 5 rib sitting in storage, if I put this on with the the bigger wheels/tyres it should come out as approx the same gearing as a 6 rib box on standard sized tyres. My calculations were done on the standard tyre diameter being 26" and the new being 28", it would mean that at 100km/h it would be sitting between 3200 & 3300 rpm, the other option is converting the 3 rib box I have to fit(CE code) and using that, it would mean though that the rpm would be higher at 100kmp/h but not by that much really, it should still be under 3300 rpm, but I do know the 5 ribs are stronger. I know a lot of people will be saying why not go for a subaru conversion, basically I don't want to, plus there is nobody I know of that does them to a high enough standard here in WA.