I say grease em up. Used to be that trucks had grease zerks on the springs. Now they use a nylon bushing between the leaves. Once nylon gone.... squeak city.
Hi;
Took mine into a local spring/suspension emporium. They loosened the springs, drove wedges between the leaves and installed what looks like teflon tape w/shoulders in between the leaves... no squeeks in almost two years.
AyJay
AyJay (ARS W1GDJ)
1979 RTS Bus Conversion
DD 8V71TA, Allison V730
2007 Saturn Aura Toad
USAF Retired 1972
When I die I want to go like my Grandfather, peaceably, in his sleep.
NOT like his passengers who went screaming and yelling!