Just a quick note to say I've updated the reply above that incorrectly ID'd Item #8 in the LMC diagram. My apologies for the mixup. I would/should have caught the "GMC" spec in the LMC ad page if I was paying closer attention. dang

My brain was stuck on there being two baffles, lower and upper. not me Thanks Kevinski for helping to get us back on the right track. thumbs_up

~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)