Nissan 370Z Forum - View Single Post - Clunk from rear when engaging gear from standstill

ImportConvert · 11-02-2010, 12:35 AM

Understand that correct back-lash for gears is around .006 at the very tightest, and usually around .007-.012 IIRC.

This is definitely enough distance to hear a bit of a clunk from, especially when you factor U-joint, slip-yoke, and all the gears in the transmission ALSO have a bit of slop in them (if they didn't, the car wouldn't be going anywhere). You probably have around .25-.5" of slop in the drive-line or more, easily. Maybe even more. I wouldn't worry about it.

11-02-2010, 12:35 AM	#2 (permalink)
ImportConvert A True Z Fanatic Join Date: Jun 2010 Location: SWMO Posts: 4,454 Drives: 2019 CX5 GT Reserve Rep Power: 7627	Understand that correct back-lash for gears is around .006 at the very tightest, and usually around .007-.012 IIRC. This is definitely enough distance to hear a bit of a clunk from, especially when you factor U-joint, slip-yoke, and all the gears in the transmission ALSO have a bit of slop in them (if they didn't, the car wouldn't be going anywhere). You probably have around .25-.5" of slop in the drive-line or more, easily. Maybe even more. I wouldn't worry about it.