Originally Posted by fastrc64

just doing some maintenance on the truck before the MI state champs this weekend and trying new products

I made my truck transmission develop a clicking sound front and rear

how i did this was on the installation of the idler gear and main gear diff all you need to do is have one facing the wrong way ie

The following number sequence is how your gears should be installed in the gear case. if you don't install them right it will make a clicking noise because it won't aline where it is supposed to. ( won't be as free running as it should be)

1 top shaft in first

2 main gear diff with the flange facing in (same side as top shaft)

3 idler gear with the flange facing out (on the same side as the other gears )

this is something you might want to check and make sure you have them right