Sorry to burst your bubble but many, many people including myself run their toyotas on the street with Bobby's output shaft and have had NO problems with them.
I have run them for 4 years now with ZERO issues at all. One rig is on 42"s and the other is on cut 47"s. Definitely NOT for offroad use only, you should get your facts straight before you open your mouth.
If Bobby Longs input output shaft doesn't have an oil port drilled in it then BigMike is correct that it isn't designed for high speed operation. His explanation is factual, but that doesn't mean that it isn't possible for people to have success running them on the street. Toyota's OEM design may be adequate to compensate for this feature being removed, but if it does cause a failure it creates a dangerous situation. I've had a t-case lock up twice and was blessed in both situations that nothing locked at full highway speeds. I was on the highway both times and the second time my rear tires locked up once I slowed to about 35 mph.
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1989 4Runner: Dual Ultimate (Inchworm front & Marlin 4.70 rear), Marlin Twin Stick, 1200-lb clutch, 4.88 R&P, Aussie Front, Detroit rear, 30-spline Longs, Long hub gears, ARP hub and knuckle studs & 35x12.50 Cooper STT PRO tires. Marlin rear bumper & sliders. FROR front bumper. SAS with Alcan springs & Rancho 9000XL shocks. Budbuilt Bolt-on traction bar. Custom Interior Cage by Those Guys Rod and Customs.
Moab Tested & Rubicon Approved
