Trailing 4WD Transmissions???????

[mudbugga]

I might have missed something along the way so forgive me please, but .......

I was reading some of the specs of a trials truck and saw they are using a frontwheel drive auto transmisson in a hybrid setup.

How are they doing this?
Why are they doing it this way?

[Pedro]

I might have missed something along the way so forgive me please, but .......

I was reading some of the specs of a trials truck and saw they are using a frontwheel drive auto transmisson in a hybrid setup.

How are they doing this?


Why are they doing it this way?

The front wheel drive auto is adapted to the back of a engine, V6 V8 or anything you like, the auto is usually in adaptions, made into a full manual auto, meaning pick a gear and it will stay there regardless of what the throttle is doing,

why?, you get a very short g/box arrangement, the diff turns into a transfer case, the diff is pulled out and welded solid in the g/box,then drive shafts run from where the axles used to be to the diffs, you can get the diff ratios to about 4:1

generally lighter than a g/box transfer case arrangement, definitely one hell of alot shorter, meaning the motor can go back further in the truck to give better balance front to rear.

disadvantage, top speed is really limited mine is good for a guess around 60-70klm per hr, that in overdrive at max revs,

advantage, makes the vehicle go like shit of a shovel, very quick throttle response, loads of low down torque, shorter, stronger?


Cheers

Pedro

[mudbugga]

Cheers Pedro.

Are you using custom driveshafts incorporating the CV's or something else?

I'd be interested in looking at some photos if anyone has some.

[Pedro]

Cheers Pedro.

Are you using custom driveshafts incorporating the CV's or something else?

I'd be interested in looking at some photos if anyone has some.

i made adaptor plates bolted the the inner CV bolt ring, that then adapts to the hilux drive shaft flange, there is a draw bolt thru the entire assembly to keep the stubs in,

Where are you

[mudbugga]

Cheers Pedro, I'm in Christchurch.

Just really interested how it is done etc

[Pedro]

Cheers Pedro, I'm in Christchurch.

Just really interested how it is done etc

not the best photo but the only one i appear to have

[mudbugga]

Great!!
Yes very compact setup!
Does it handle the power and load it gets put through OK?

[mudbugga]

I can know see how easy it would be to mount the alternator off the rear as well.

Good stuff!!

[Pedro]

Great!!
Yes very compact setup!
Does it handle the power and load it gets put through OK?

yup

3.8 supercharged v6, 4.1 diffs and 35" tyres, no issue so far

pedro

[Pedro]

I can know see how easy it would be to mount the alternator off the rear as well.

Good stuff!!

not so easy, belt replacement would require pulling g/box off motor to get belt around pulley

Cheers

[motorhead]

Have a Rover Vitesse with 5spd auto, 2.7 Honda/Rover great power through the entire RMP range, extra LWB Paj, convert to SAS, sounds like a plan.