Join Date: Aug 2012
Location: West Australia
Thanked 54 Times in 54 Posts
iTrader Score: 0 reviews
I run a RTO610 in mine.
I had the Worlds greatest luck in finding one with a SAE 3 housing. The overdrive is only .8
Clutch is from an Aussie International truck, push type and operated by an air assist slave cylinder. You need air anyway for the range change in the box.
I raised the cab 2" and had to modify the fire wall around the clutch housing but as this is a Ford, part of that was to get the engine setback so I had clearance at the radiator.
The 610 has gear noise, believe the 6610 has different gear angles and are quieter, and remember it is a crash box so takes a bit of getting used to.
The bigger RR's only have a spring support on the rear of the box, I mad up a lower crossmember and used a couple of small mounts to just take the load and there are mounts on the bellhousing.
Tows very well, think a 13 would be a waste, even with 7000 lb of boat I still start in 3rd on flat ground.
86 F350 CC dually, RTO610, 3.32 final gears 93 5.9 (ex F600) basically stock,THD pin, Aftermarket AFC spring, re-set injectors. tuning in progress