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chadd1981
Joined: Sat Mar 28, 2009 10:30 pm Posts: 103 Location: Heathcote NSW
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 Posted: Tue Aug 04, 2009 10:51 pm |
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Hey guys
i have just checked my diff ratios but counting how many times the flange on the diff turns to 1 revolution of the wheel. My only turns twice to a full revolution of the wheel. What ratio does this mean i have??
This doesn't seem right to me so any help will be good.
Cheers
_________________ 86 LWB Sierra Ute
Toyota 5k with Toyota 5 speed
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31zook
Joined: Tue Mar 24, 2009 10:30 pm Posts: 9242 Location: maito
Vehicle: <3 Edna <3
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 Posted: Wed Aug 05, 2009 10:13 am |
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make sure that your only spinning one wheel not both.... and that would mean 2:1, which is wrong
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chadd1981
Joined: Sat Mar 28, 2009 10:30 pm Posts: 103 Location: Heathcote NSW
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 Posted: Wed Aug 05, 2009 12:33 pm |
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31zook wrote: make sure that your only spinning one wheel not both.... and that would mean 2:1, which is wrong
I only lifted 1 wheel off the ground and so only 1 wheel is spinning. That does not sounds right to me either that is why i am asking.
Any one else know what it could be??
_________________ 86 LWB Sierra Ute
Toyota 5k with Toyota 5 speed
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TASSIETOYUKI

az supporter
Joined: Mon Oct 27, 2008 10:30 pm Posts: 490 Location: Rosevears Tas
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 Posted: Wed Aug 05, 2009 2:56 pm |
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You need to have both wheels off the ground so that both wheels can spin. With only one wheel turning the wheel will travel twice the distance than normal. From this you could surmise that you diff ratio is 4:1 but since the ratio's are from 3.7:1 to 4.11:1 this method is not accurate enough for what you want. It is best to turn the tail shaft rather than the wheel and work it out from there IE; how many turns of shaft to 1 turn of the wheel.
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chadd1981
Joined: Sat Mar 28, 2009 10:30 pm Posts: 103 Location: Heathcote NSW
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 Posted: Wed Aug 05, 2009 3:10 pm |
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I will jack both wheels up tonight and see what i get with both wheels off the ground. i thought that i must have been doing something wrong.
_________________ 86 LWB Sierra Ute
Toyota 5k with Toyota 5 speed
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chadd1981
Joined: Sat Mar 28, 2009 10:30 pm Posts: 103 Location: Heathcote NSW
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 Posted: Thu Aug 06, 2009 5:47 pm |
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okay i think that i have a problem somewhere. I lifted both the back wheel in the air last night and tried again. but for some reason when i turned the wheel, the tailshaft didn't turn all the time, it was like something was slipping in the diff. the same thing happened when i turned the tailshaft, the wheels didn't turn all the time. the car was in neutral and the hand brake was off.
have i got a problem or am i still doing it wrong??
Any help will be appreciated.
_________________ 86 LWB Sierra Ute
Toyota 5k with Toyota 5 speed
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tanshi

az supporter
Joined: Tue Jan 09, 2007 10:30 pm Posts: 7717 Location: Brisbane
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 Posted: Thu Aug 06, 2009 6:05 pm |
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jack the car up, put the transfer in neutral. and rotate the tail shaft. letting the wheels spin and count this way.
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TASSIETOYUKI

az supporter
Joined: Mon Oct 27, 2008 10:30 pm Posts: 490 Location: Rosevears Tas
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 Posted: Thu Aug 06, 2009 6:42 pm |
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You wont be able to turn the rear tail shaft if you have the transfer in neutral due to the front and rear shafts being locked together in anything except 2wd. sounds like your brakes are dragging on the rear
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zooker

az supporter
Joined: Sun Aug 06, 2006 11:30 pm Posts: 596 Location: Queanbeyan
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 Posted: Thu Aug 06, 2009 10:30 pm |
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chadd1981 wrote: okay i think that i have a problem somewhere. I lifted both the back wheel in the air last night and tried again. but for some reason when i turned the wheel, the tailshaft didn't turn all the time, it was like something was slipping in the diff. the same thing happened when i turned the tailshaft, the wheels didn't turn all the time. the car was in neutral and the hand brake was off.
have i got a problem or am i still doing it wrong??
Any help will be appreciated.
Are you able to drive the car?? have you had any noises from the rear diff??
Because when mine did as you describe (i.e. turn the tailshaft and the wheels didnt turn constantly) it was because I'd smashed about 4 teeth of the pinion gear = farked diff 
_________________ Member of C.O.R 4x4
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chadd1981
Joined: Sat Mar 28, 2009 10:30 pm Posts: 103 Location: Heathcote NSW
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 Posted: Fri Aug 07, 2009 12:49 pm |
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zooker wrote: chadd1981 wrote: okay i think that i have a problem somewhere. I lifted both the back wheel in the air last night and tried again. but for some reason when i turned the wheel, the tailshaft didn't turn all the time, it was like something was slipping in the diff. the same thing happened when i turned the tailshaft, the wheels didn't turn all the time. the car was in neutral and the hand brake was off.
have i got a problem or am i still doing it wrong??
Any help will be appreciated. Are you able to drive the car?? have you had any noises from the rear diff?? Because when mine did as you describe (i.e. turn the tailshaft and the wheels didnt turn constantly) it was because I'd smashed about 4 teeth of the pinion gear = farked diff 
Yeah i am able to still drive the car and there doesn't seem to be any noises coming from the rear diff. I am thinking about pulling it apart on the weekend just in case though.
_________________ 86 LWB Sierra Ute
Toyota 5k with Toyota 5 speed
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