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how do i identify my diff ratios
Posted: Thu Nov 10, 2005 9:04 am
by kegz
hey everyone how can i identify my diff ratios. it is a ln65 diesel.
also while im at it does anyone no if i could put a celica box straight in using my bellhousing. and bolt the transfer where the extensioin housing or whatever they have wold be cheers
Posted: Thu Nov 10, 2005 9:55 am
by jimmyb
divide ring gear tooth number by pinion tooth number.
Re: how do i identify my diff ratios
Posted: Thu Nov 10, 2005 9:59 am
by ToNkA
kegz wrote:hey everyone how can i identify my diff ratios. it is a ln65 diesel.
also while im at it does anyone no if i could put a celica box straight in using my bellhousing. and bolt the transfer where the extensioin housing or whatever they have wold be cheers
They would be 4.56 from factory.
But the only sure way is to count the teeth like suggested.
Posted: Thu Nov 10, 2005 3:29 pm
by HEY CHARGER
Or without removing the centre , jack wheels of the ground and count how many turns of the driveshaft it takes to complete one complete turn of the wheel.
Theres your ratio eg 4.1 turns of the driveshaft to 1 turn of the wheel = 4.1 to 1
Posted: Thu Nov 10, 2005 4:37 pm
by +dj_hansen+
HEY CHARGER wrote:Or without removing the centre , jack wheels of the ground and count how many turns of the driveshaft it takes to complete one complete turn of the wheel.
Theres your ratio eg 4.1 turns of the driveshaft to 1 turn of the wheel = 4.1 to 1
Place a chalk mark on the wheel and on the ground to make life easier when doing this...
Should only take 1 beer, not 6
Posted: Thu Nov 10, 2005 9:31 pm
by bigpat
Check the code on the firewall plate. Look for a G###. Mine is a G145, 14 being 4.88:1 ratio, the 5 meaning 4 pinion LSD.
Just go to
http://www.off-road.com/toyota/tech/other/4_axles.html
Easy as......
Posted: Fri Nov 11, 2005 7:48 am
by ToNkA
Thats if you know its the same diff as what was in it from factory...
re
Posted: Sat Nov 12, 2005 2:09 pm
by kegz
it is still the original dif because i no the history of this vehicle and on the plate it says g252??
Posted: Sat Nov 12, 2005 3:37 pm
by v840
According to this site,
http://www.brian894x4.com/Gearratiosanddiffs.html yours' is a 8", 4.556, 2 pinion, open diff.
As for bolting the celica box up, its my understanding that the celica boxes were pretty weak anyway so I would probably try and find a later model hilux one as it would already have the provision for the transfer case and have a better chance of fitting your bell housing. Or you could go a supra box, adapter kits are readily available but might be exxy.
Good luck.
Posted: Sat Nov 12, 2005 11:01 pm
by RED60
Seem to remember the jack up n turn method doesn't work because of planetry gears cummin into play. This system will work if u have locker diff engaged because planetries are out of action.
