BGTV8

I originally bought a Quaife 69G and then got a serious offer to take it off my hands (it went to New Zealand for a GT-car) and eventually finished up with a Holinger RD6 (new manufacture, straight cut gears throughout) - I have run it in my race car once so far (in Feb, and then had an engine oil pressure problem so I have an engine rebuild underway to fix that).

The Z34 engine-build is proceeding in parallel which is not ideal .... and causing the domestic noise-generator to go into overdrive, but that is nothing new where my toys are concerned.

I am a convert for sequential boxes and flat-shifting ..... the race car is back in two weeks and I have entered Round 3 of our state sports car championships for July, so I will grab some video out of that weekend to demo the flat-shift technology.

Holinger RD6 is not cheap (A$22K) but they are a truly excellent box .. my H-pattern I had in the race-car for 6 seasons and apart from oil changes and servicing the filter, it did not cost me a penny for over 10000 race kms. When I took it out and originally on-traded it to fund the Quaife, I stripped it to crack-test the gears (got a much better price doing this) and found no issues at all - replaced all bearings, seals and gaskets and zipped it up. That box is now behind a 6.2 litre Chev engine.

On margin, even though the Holinger is more expensive, I reckon it is worth it. That said, the guys in NZ reckon the Quaife is also perfectly serviceable. I went with the Holinger in the end because they are made in Melbourne and the factory is 15 minutes from my place, so I'm keeping my motorsport spending local. Service on the Quaife requires that it be returned to the Asia/Pacific agents in NZ.