Spring on Fork Shaft?

[Stellar Performance]

Okay.....I've built building engines for a while now, but am curious of why some of them have a small spring on the rear shift fork shaft and some do not. I have been through my clymer manual numerous times and they do not show it. I have read some threads about dunable overrides using a spring for the forks, but none of these trannys are dunalbe overrides. Ive seen it both on a engine with a 1-4 nuetral down override, and even a stock tranny engine.

 

Just hoping to get some input........Thanks Guys! :biggrin:

[ohiobanshee]

The springs help center the shift forks on overrides.