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shifted
07-04-2011, 06:21 PM
Have to work out the ratios in the spare Hilux diff's I have.

Questions I have (as I have never done this before)....

How (something about dividing the amount of teeth?)
Can I actually take the diff apart and put it back together no drama?

Or will that fuck something up?

Don't want to ruin anything in the process, I will be careful and shit but yeah... safest way to make sure its all sweet even if it is time consuming...

Anyone done it themselves? Pointers?

Any info/tips greatly appreciated.

Cheers,

Paul
RRob
07-04-2011, 07:32 PM
Simplest way is to texta mark both axles and the pinion- then see how many times the pinion spins to one full even rotation of both axles.
blackjack
07-04-2011, 07:43 PM
for 'accuracy' spin pinion 10 times - axle should spin between 37 & 45 times or so.
edit:
39 & 8= 4.88
41 & 9= 4.56
43 &10= 4.3
shifted
07-04-2011, 09:09 PM
Will look into it fellas, cheers!

So what division do I have to do after that to figure our the ratio?
mitchy
08-04-2011, 07:21 AM
divide the axle rotations/teeth by the pinion rotations/teeth.
180SXTCY
08-04-2011, 07:36 AM
because you said spare diff you had im assuming its just in the shed?

if so simply just remove the rear cover from the housing and the crown wheel should have numbers stamped in it. eg XX:XX

divide the two numbers and that's the ratio.
shifted
08-04-2011, 08:42 AM
Yeah its sitting in the garage on a nice tyre!

Will try on the weekend, thanks fellas!
blackjack
08-04-2011, 04:23 PM
Hilux diffs don't have covers you can take off? If the diff is complete , pulling it apart to work out the ratio is a big job especially if it's the front one.
shifted
09-04-2011, 06:29 AM
Well, I have to work out the front and rear one.

It is all complete. May have to do that spin the pinion thingo. Will check it out after work today!
PHIL
09-04-2011, 08:21 AM
what year are the diffs out of and petrol or diesle and i will tell ya what they are
shifted
09-04-2011, 09:14 AM
1994 Diesel Dual Cab.
PHIL
09-04-2011, 12:04 PM
should be 4.1s mate exact same from 87 to 97 on diesles, unless previous owner changed them
shifted
09-04-2011, 12:39 PM
Dang. Wreckers reckoned 4.3 or 4.5??

Might have to do a quick check anyway.

Doubt they were changed, reckons they have travelled 154,000kms.
PHIL
09-04-2011, 03:15 PM
Dang. Wreckers reckoned 4.3 or 4.5??

Might have to do a quick check anyway.

Doubt they were changed, reckons they have travelled 154,000kms.

yeah just spoke to a mate turns out they would be 4.3s not 4.1s but just check anyway like i said previous owner could have swapped them