Hey guys i installed a cam and 4.10 gears on my avalanche but still haven't got the chance to tune it...while i was driving home i noticed a whining and ticking sound when i let off the gas at 60 mph? Anyone have any idea if this is normal?

 

What brand of gears did you use, the whining may be characteristic of them. As for the ticking, it may also be characteristic of the aftermarket cam. What springs and pushrods did you use? Cam specs? You could always re-check the rocker arms just to be safe...

 

its actually not my truck...but it has richmond 4.10 gears...Patriot Gold springs...trickflow pushrods...and a GT11 cam...

 

do u have headers? if so it could be the sound of the valves slamming shut and ur not used to it...the valve springs themselves are very loud as well...

 

yea he has pacesetter long headers with a y pipe..(no cats) the ticking is probably from the valves but the whining sound...thats irritating

 

he has pretty much the same mods as me...but im changing from my GT11 to a Thunder racing custom grind..

 

I've heard that the Richmond gears are noisy, so it may be characteristic if the gears are set up right.

 

Yea its seems to have a whining sound to it..but there nice lool

 

Ive set up richmond gears for years with no sound ect.. Better pull the cover and inspect the contact pattern before its too late. usually the whine can be corrected if not run too long

 

Does the whine affect its performance in any way?