I'm going to start-in on brake conversion thanks to the advise I've received from the Bolters. It appears 16x6 or 16x8 wheels will work with the TSM disc brake front wheel conversion. Brakes, steering, suspension are first up before I get into re-building my 235 or looking for a 261. I've received strong recommendations to consider the 261 over the 235. John Milliman has provided some great direction on making the switch to a 261 engine. For those who have changed/increased wheel sizes, I'd be interested on feedback to the advantages of 16" vs 17" wheels?