diff tags

[player6]

can anyone tell me what diff i have by the tag number

it is S3,25 1801

[dazleeds]

i would say a 3.25 lsd

thats what the no's mean anyway mate

the s denotes lsd and the first 3 no explain the ratio

hth

not heard of that ratio tho

[Dan318-is]

i would say a 3.25 lsd

thats what the no's mean anyway mate

the s denotes lsd and the first 3 no explain the ratio

hth

not heard of that ratio tho

Edit: see below

[player6]

do you know what it comes off

[player6]

its smaller than my 3.91 diff

[Dan318-is]

i remember

standard m3s had this diff

[player6]

i take its a small casted diff then

[Dan318-is]

Yes it will be small casing i believe

[Andy335Touring]

M3 is big case i thought ?

8 bolts holding on the back cover is a big case ?

[Dan318-is]

i said big case didnt i?

edit: i think i am going mad

[player6]

whats the diffence in the big and small cased diff then

[Andy335Touring]

I think the small ones won't handle the kind of torque your getting from your engine for very long ?

[Dan318-is]

as suggested the size, small cases have 6 bolts at the back large cases have eight; although large cases are actually medium cases because 5 and 7 series diffs are huge

large case diffs are meant to a lot more robust and take a lot more abuse than the smaller ones i think

[Simon]

S3.25 is a medium case LSD from an M3, M3's also had 3.15's, found on Evo II and sport evo.

[player6]

t think this one came off a 323i

[Dan318-is]

The 323i came with a 3.64 as far as i remember??

[Simon]

Not sure about 323i, but 324td touring came with a 3.25 too.

[dazleeds]

u lucky sod player

must check and see whats on my 323i

no plate
so need an accurate manual way of finding out and i cnt drive it

any ideas??

[E30BeemerLad]

suppose if you jack it on one side and try to turn the wheel and it won't turn then that would suggest it is a slipper daz, assuming the old girl hasn't seized the handbrake on etc?

then it's all about counting how many revolutions of the wheel to the prop

[jonb]

that diff is from a 323i with a dogleg box,. hence the high ratio. these are quite rare, but due to that fact they are small case they are not as strong as the 8 bolt m3 varient.