Thread: 6 speed R380 replacement

Non syncro dog engagement straight cut gears, you'd want to be good at double declutching.

There was a thread on this a little while back - as said not a good option.

the gearbox would be worth more than the rest of the truck.

Originally Posted by goingbush

Non syncro dog engagement straight cut gears, you'd want to be good at double declutching.

Actually you can't and don't need to as the shifts are so fast being a sequential change, and being face dogs the holes are nice and big for the engagement dogs to drop into.

I never bothered double de-clutching H pattern Hewlands years ago, but then I mostly drove them sans clutch anyway, except for starting and stopping, left foot braking everywhere

None of that new fangled rev cut either, it was illegal anyway, so you just backed off the throttle the tiniest of amounts and moved the lever as fast as you could so that you could engage the next gear on the upchange and the shift was almost seamless, and you just knocked it out of gear and blipped the throttle on the down change.

Straight cut teeth howl like there's no tomorrow though, it'd be unbearable in a daily driver

Totally useless for anything other than the track,it's enough work driving a road ranger in heavy traffic. Pat

Originally Posted by goingbush

Non syncro dog engagement straight cut gears, you'd want to be good at double declutching.

I have driven both my LT85 and my IIA box for ~300 km each when the clutch hydraulics failed. The IIA box has no synchro on 1 or 2 and a straight cut 1st gear. It wasn't that hard, even though I hadn't ever done it before.

Yep, I've done the "clutchless LT85 gearbox fandango" as well.

It helps having ridden off-road bikes, you get to understand how to change without a clutch.

Originally Posted by rick130

Actually you can't and don't need to as the shifts are so fast being a sequential change, and being face dogs the holes are nice and big for the engagement dogs to drop into.

Just bang it up through the gears and bump the revs down to stop compression lockup. That's how I'd do it in the Maccas drive-through anyway.