6 speed R380 replacement

[tangus89]

Hi
Just saw this in the latest landy mag, if i had the money i would put one behind my isuzu. 6 speed sequential replacement for an r380, designed for rally raid cars.


QBE86G - Quaife Engineering (http://quaife.co.uk/shop/products/qre2j)

[goingbush]

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

[101RRS]

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

[uninformed]

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

[rick130]

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 :D

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 :(

[PAT303]

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

[isuzurover]

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.

[jakeslouw]

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.

[Slunnie]

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. :D

[HPLP]

Has anyone heard of fitting the latest 6 speed gearbox (behind the puma) to earlier land rovers (specificly a 300tdi).

I wonder what that would be like and whether it would be worth doing?

Hugh

[uninformed]

Has anyone heard of fitting the latest 6 speed gearbox (behind the puma) to earlier land rovers (specificly a 300tdi).

I wonder what that would be like and whether it would be worth doing?

Hugh

Ashcroft are working on this. They are starting with the td5. I was thinking about this last night, in relation to the LT230. Seeing there has been more issues with the pumas than other LR's with lifts and driveshaft problems due to the rotation of the T/Case.....I do wonder if fitting a 6 speed behind other engines and how the T/case will work out. Are the mounting bolts concentric? can it just be rotated back?

[rick130]

Ashcroft are working on this. They are starting with the td5. I was thinking about this last night, in relation to the LT230. Seeing there has been more issues with the pumas than other LR's with lifts and driveshaft problems due to the rotation of the T/Case.....I do wonder if fitting a 6 speed behind other engines and how the T/case will work out. Are the mounting bolts concentric? can it just be rotated back?

If the MT82 is longer than the R380 they might have had to tilt the entire driveline more steeply for that little short rear prop shaft on the 90 to have acceptable angles on the rear uni's ? (pure conjecture on my part)

[BigJon]

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

I think you mean it would be totally cool in a daily driver! :angel::twisted::p

[uninformed]

If the MT82 is longer than the R380 they might have had to tilt the entire driveline more steeply for that little short rear prop shaft on the 90 to have acceptable angles on the rear uni's ? (pure conjecture on my part)

a quote from Ashcroft: "ultimatly we would like to have a kit for the TD5, V8 and TDi but as the length is a major issue we thought we would start with the longest setup ie the TD5, even in the TD5 it's very tight to get it the same as the 380, for the V8 and TDi it looks like we will need to shorten the rear end, if we do this it will make the TD5 much easier as we may be able to use the stock TD5 clutch bearing and slave,

will do more measuring tomorrow,"

[rick130]

I think you mean it would be totally cool in a daily driver! :angel::twisted::p

Hahahaha, and probably wouldn't hear it over the rest of the noise a Defender makes.

Supposedly my MT's howl, but I've never heard them :D

Actually a certain poster on this thread asked a certain caller this morning if they were ringing from a wind tunnel as they drove along. :angel:

[Jitterbug]

It wont be long until the LT77 is my weakest link. Might have to be the next move after I replace the 3.9 with the 4.6 V8 I have lying around (with extractors, cam, high flow exhaust and wolf3D, probably new pistons etc at some point down the line too). :D:twisted:

[goingbush]

So the guts of the Qualfe gearbox look just like a motorbike gearbox,
https://www.aulro.com/afvb/images/imported/2012/02/1117.jpg
so now I get how the sequential changer works, and you can just bang it into gear like a motorbike.

So wheres neutral, is it 1 down & 5 up like a bike ?
what about reverse, maybe a lever like a quad ?

Would take a little to get used to using foot clutch & hand gears !

[Slunnie]

So the guts of the Qualfe gearbox look just like a motorbike gearbox,
https://www.aulro.com/afvb/images/imported/2012/02/1117.jpg
so now I get how the sequential changer works, and you can just bang it into gear like a motorbike.

So wheres neutral, is it 1 down & 5 up like a bike ?
what about reverse, maybe a lever like a quad ?

Would take a little to get used to using foot clutch & hand gears !
Looks like its just up in front of 1st gear.