Differential Dilemma

[InuFaye]

I like to go to the yards and harvest diff tags. I'm going to have a charm bracelet made out of them and give it to my next girlfriend as an anniversary present, from the heart, of course.

Oh yea?

Lets tell your current girlfriend about this idea.

[Lof8]

No dilemma really.

It IS a LSD diff.

You can determine from the pic?

[slammin.e28]

Oh yea?

Lets tell your current girlfriend about this idea.

'Cause I don't have one anymore!!!!!

Why do you think I've been making my own sammiches for lunch these days?

[Lof8]

For the ratio do as mentioned and turn the input shaft 1 full rotation, keep track of one of the outputs and it should rotate 3.35 revolutions for every 1 full rotation of the input.

I would think it would be the opposite. 3.25 input turns for 1 output revolution.

[shiboujin]

input is the small gear, output is the big gear. Public school ftw!

[F34R]

do 1 rotation of the axle and count the rotations of the drive shaft flange. Tada!

1+ I cannot believe people don't know this yet. Anyone ever come across a site that sells the tags? I rebuilt both of my LSD diffs and it would be nice to slap on some mint tags.

[LJ851]

You can tell by the carrier that your diff is a limited slip. 100%. An open diff looks completely different. Lof8 you are correct, however many turns of the input flange it takes to rotate the output flanges 1 (one) revolution is the ratio. You are now an expert.

[shiboujin]

r3v amuses yoshi :)

[Lof8]

You are now an expert.

Haha :D Thanks

[InuFaye]

'Cause I don't have one anymore!!!!!

Why do you think I've been making my own sammiches for lunch these days?

Wait.

What happened? I had no idea.

[e30rapidic]

open diff looks like this inside



count revolutions of flanges to driveshaft as stated above

I mean this nicely...but get facts straight before throwing a member under the bus for your ignorance

[Lance Racing]

I bought a BMW lsd unit out of a wrecking yard, it was from an 80's 5 series with a medium case diff. Tag said 4.27, but the actual ratio inside was 3.64. WTF?

Now I don't trust the tags anymore. Rotate to verify or count teeth and do the math.

[318isbmw]

I mean this nicely...but get facts straight before throwing a member under the bus for your ignorance

+1 Its obvious you don't know a ton about diffs, which is fine, we all start somewhere, but learn before trying to dispute the seller. Counting teeth is going to be the most accurate way of solving what ratio it is, if you're too lazy to do it then don't bring the seller down because you won't believe what ratio he said it is.

[slammin.e28]

Wait.

What happened? I had no idea.

You'll probably hear all about it on Saturday. It's kinda up-in-the-air-but-we-all-know-what-that-means kinda deal.

[InuFaye]

You'll probably hear all about it on Saturday. It's kinda up-in-the-air-but-we-all-know-what-that-means kinda deal.

Im bringing the popcorn.