I stripped the p100 down nearly a year ago and today i went to rebuild it and made some great progress.

Now, i noticed the prop had gone walkies, i cant find it anywhere!

Ive noticed some for sale are skinny, and some are quiet chunky.

The 2.8/xr4x4 ones etc are thinner.
The chunky ones are from a cosworth.

The car had the skinny one on it as i recall
My question:

Is there any real difference in the two? are they interchangeable?

The rest of the car is using cossy bits and when ive fitted the running gear in the past i hadnt noticed it was on the skinny prop.
Thanks, Matt.