Tuga,
I use these folks for most stuff like that. Also for oil filters, coolant, and air fittings.
I see they have shops in Lou.
http://www.truckpro.com/
The prices seem reasonable to me on what I have bought from them.
__________________
Richard Rhonda Ty and Alex Entrekin
1995 Newell # 390 DD Series 60, Allison World Trans
Subaru Outback toad
CoMotion Tandem
Often wrong, but seldom in doubt
Rhonda's chronicle
https://wersquared.wordpress.com/