H3 Snorkle Install
Posted: Sat Jun 05, 2010 6:22 pm
You will require a power drill with bits from 1/4to7/16ths (self centering for 1/4 best) ,a 3 1/2" hole saw a dremel type hand tool with cut off discs and a cylindrical drum mill head (to smooth and enlarge hole)or a spiral cutter, Masking tape, sealant glue (goo), locktight blue removable, paint touchup or tremclad ( q tips to apply) ,10 GM fasteners for fender linner, poprivet tool, wrenches and screw drivers.
Okay to start remove antenna from fender mount Cover the flat portion of the fender mount using cutoff disc cut cap plastic only from antenna mount (if you wish paint cap screw to match paint) install extension with cap screw donot reinstall antenna. Remove fender liner by prying push pins out.
Mask fender with masking tape makes it easier to see marks and prevents chipping then tape down template.template should just touch rubber fender seal.

Drill all holes start with 1/4"self centering drill (Sharp point prevents tip from walking on fender surface) enlarge to 7/16" use 3 1/2" for large hole then use cutoff discs to remove new moon shape and smooth with mill head to oval shape.

mask door frame to protect paint.
assemble studs with locktight on snorkle body and install top brace on snorkle test fit snorkle to truck and loosely bolt on using steel drill mark holes on a post with cover on. remove cover 3 clips on front 2 screws under rubber moulding. finish drilling into pillar then paint holes with rust or touch up paint using Q tip (easier than brush or spray) place rubber spacer and hold with tape reinstall cover and gasket on door pillar .(note "rope" by window is our CB cable)

remove airbox from truck clean it (we found our airbox had a rubber gasket extension that when removed allowed new piece to be added without cutting

) with neck closest to front and down use sealant to affix air box together with new neck drill and rivet. loosely rebolt air box into truck. to be continued
Okay to start remove antenna from fender mount Cover the flat portion of the fender mount using cutoff disc cut cap plastic only from antenna mount (if you wish paint cap screw to match paint) install extension with cap screw donot reinstall antenna. Remove fender liner by prying push pins out.
Mask fender with masking tape makes it easier to see marks and prevents chipping then tape down template.template should just touch rubber fender seal.

Drill all holes start with 1/4"self centering drill (Sharp point prevents tip from walking on fender surface) enlarge to 7/16" use 3 1/2" for large hole then use cutoff discs to remove new moon shape and smooth with mill head to oval shape.

mask door frame to protect paint.
assemble studs with locktight on snorkle body and install top brace on snorkle test fit snorkle to truck and loosely bolt on using steel drill mark holes on a post with cover on. remove cover 3 clips on front 2 screws under rubber moulding. finish drilling into pillar then paint holes with rust or touch up paint using Q tip (easier than brush or spray) place rubber spacer and hold with tape reinstall cover and gasket on door pillar .(note "rope" by window is our CB cable)

remove airbox from truck clean it (we found our airbox had a rubber gasket extension that when removed allowed new piece to be added without cutting

) with neck closest to front and down use sealant to affix air box together with new neck drill and rivet. loosely rebolt air box into truck. to be continued