stupid question

gstuart · Apr 17, 2015

I may get sworn at for this one

going to strip my front brakes sunday , going to jack up the front and put axle stands under it

now if I put the hand brake on, choke the rear wheels and gearbox out of park and into neutral , surely then if I spin the front wheels the back wheels can't move due to it being in neutral ???

so sorry asking a daft question , just didn't want to spin the front wheels and find the car coming forward with the vcu engaging , but surely the prop won't turn whilst the gearbox is in neutral

am only going to spin them slowly to ensure whilst doing the brakes that there nice and free and resolving the binding that there currently doing

thks guys and sincere apologise once again for asking a dim question

longdog · Apr 17, 2015

Just leave the hand brake on, and in park. With both front wheels in the air, one will
turn one way, the other in the oposite direction

gstuart · Apr 17, 2015

longdog said:
Just leave the hand brake on, and in park. With both front wheels in the air, one will
turn one way, the other in the oposite direction

cheers mate , just didn't fancy taking any risks with me spinning the front wheels and the rears kicking in and the car coming forward off the axle stands

prefered to ask the daft question before hand , lol

fingers crossed the dealer will have the pins i ordered in tommorow, fri ,

just seems strange that both fronts are sticking , will find out sunday

thks again

GrumpyGel · Apr 17, 2015

Fronts won't turn cos vcu won't let them. You'll need all 4 up to spin any.

GrumpyGel · Apr 17, 2015

Or you could just jack up 1 side at a time. If you spin the front the back will also turn. Need the hand brake off of course! and in neutral. I presume you'll need to put some effort into it - cos you'll be turning 2 wheels, 2 drive shafts, 2 prop shafts, the VCU, 2 diffs and the bits into the gearbox.

gstuart · Apr 17, 2015

GrumpyGel said:
Fronts won't turn cos vcu won't let them. You'll need all 4 up to spin any.

confused now, lol

just thought if by jacking the front up so the wheels are free of the ground, handbrake on and in neutral the front wheels would move freely without the rear wheels engaging

due to no drive going to the rear prop and vcu whilst the car is in neutral

GrumpyGel · Apr 17, 2015

Neutral is in the gearbox - not the IRD. The front and rear axles are geared 1:1 (basically) by the IRD - turning the front one (by spinning the front wheel) will result in the rear axle turning - so one of the back wheels must be free to turn - ie off the ground.

longdog · Apr 17, 2015

The diff in the ird will cause the front wheels to turn in oposite directions, the prop wont turn.

GrumpyGel · Apr 17, 2015

Yeh, your right - the stationary prop into the IRD will lock the gearing through to the gearbox - so the other front wheel will turn.

So the front wheel will be free to spin if you lift both front wheels or a wheel at the back.

stupid question

gstuart

D3 Grandad

longdog

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gstuart

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gstuart

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longdog

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