slate blue

Guys does anybody know what the PCD is of our crown wheels? If anybody has one apart I would greatly appreciate a measurement in metric. The measurement is taken from centre to centre of the holes and also if somebody could confirm that it is a 12 bolt pattern also.

Cheers Greg

GlenL

Greg,

I'm not sure what a "crown wheel" or "PCD" is. Could you translate into the American English?

John Welch

flywheel?

69gaugeman

I think PCD is pitch circle diameter. Trying to find a different flywheel? Also known as Bolt circle diameter

jpitman2

Crown wheel = Ring gear, as in ring and pinion.....differential. Sounds like he is looking at an aftermarket LSD or similar...
jp 83 Euro S AT 50k

slate blue

John you are correct and get the chocolates,(candy for you guys)
PCD is the diameter that is measured from the bolt holes. Still looking for the info.

Cheers Greg

69gaugeman

John doesn't count. It is winter where he is too

jpitman2

Whats the season got to do with anything?
jp

slate blue

C'mon guys has anybody got a diff out that can do a measurement please???

Thanks again

69gaugeman

It's the location relative to the local slang as evidenced by the different current season.

Greg, sorry mine works better in the car and I prefer to keep it that way. If I had one to take apart I would.

Vilhuer

Yes but it will take few days. Isn't there few different versions of these ring gear/diff housings? Do all of them have same bolt pattern? I only have 5sp GTS on hand.

slate blue

Given your crown wheel will be identical to my GT's that will be great.

Thanks

Greg

Vilhuer

Result was 156mm. This is not 100% accurate as measuring device wasn't best possible. Hope it's close enough for your needs.