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my diff is a what?
Posted: Mon Oct 15, 2007 10:56 am
by Hyperion
Hi guys
i had a chance to get uder my car this weekend because i wanted to find out what diff i had, so anyway i get under ,clean the tag and it tells me this:
40:11 10 89
huh?
someone please decipher this for me.
thanks
Posted: Mon Oct 15, 2007 10:58 am
by StuBeeDoo
40:11 ratio = 3.64:1.
40 (crown wheel teeth) divided by 11 (pinion teeth).
Re:
Posted: Mon Oct 15, 2007 11:16 am
by Hyperion
thank you StuBeeDoo
Re:
Posted: Mon Oct 15, 2007 4:47 pm
by daimlerman
That should give around 75mph at 3000rpm.
Re:
Posted: Mon Oct 15, 2007 4:49 pm
by StuBeeDoo
daimlerman wrote:That should give around 75mph at 3000rpm.
24.1mph/1000rpm in 5th IIRC.
Re:
Posted: Mon Oct 15, 2007 5:12 pm
by MrDazzle
StuBeeDoo wrote:daimlerman wrote:That should give around 75mph at 3000rpm.
24.1mph/1000rpm in 5th IIRC.
On stock wheels and tyres...
Re: my diff is a what?
Posted: Mon Oct 15, 2007 5:37 pm
by cliffybabe
Hyperion wrote:Hi guys
i had a chance to get uder my car this weekend because i wanted to find out what diff i had, so anyway i get under ,clean the tag and it tells me this:
40:11 10 89
huh?
someone please decipher this for me.
thanks
no s or anything??
Re: my diff is a what?
Posted: Mon Oct 15, 2007 6:05 pm
by StuBeeDoo
cliffybabe wrote:Hyperion wrote:Hi guys
i had a chance to get uder my car this weekend because i wanted to find out what diff i had, so anyway i get under ,clean the tag and it tells me this:
40:11 10 89
huh?
someone please decipher this for me.
thanks
no s or anything??
Not a slipper then. Mine only had numbers too. IIRC, someone said "A" denotes a factory rebuilt unit.
Re:
Posted: Mon Oct 15, 2007 8:56 pm
by gooner1
daimlerman wrote:That should give around 75mph at 3000rpm.
Aaah, thats about what mine does but cant make out the numbers on it.
Thanks for that
Hyperion yours would,nt be an 86 cab would it?
Re:
Posted: Mon Oct 15, 2007 9:31 pm
by Hyperion
no other letters at all, just those numbers, cliffy.
my car is a '90 325i baur (auto) gooner.
Re:
Posted: Tue Oct 16, 2007 10:31 am
by royale30
What do they say if they are a slipper? Doing a donut always seems a bit wrong when testdriving a car
Re:
Posted: Tue Oct 16, 2007 10:35 am
by StuBeeDoo
royale30 wrote:What do they say if they are a slipper?
First character is "S", followed by no. of crown wheel teeth, then no. of pinion teeth.