The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 1986 silverado gearbox fitting sizes. I need 6AN. PLEASE HELP!!!

NASTY-LSX · 07-30-2022, 08:13 PM

Im doing a LS swap and need to tie in the power steering lines(custom made)
I need to put 6AN fittings in the gear box. I have been told I need 11/16x18 and 5/8x18 fittings. I thought these gear boxes were metric. Do both fittings have a flare with a o ring or just pressure? I dont have any factory lines to go off of. Thanks

07-30-2022, 08:13 PM	#1
NASTY-LSX Registered User Join Date: Oct 2013 Location: HOUSTON Posts: 355	1986 silverado gearbox fitting sizes. I need 6AN. PLEASE HELP!!! Im doing a LS swap and need to tie in the power steering lines(custom made) I need to put 6AN fittings in the gear box. I have been told I need 11/16x18 and 5/8x18 fittings. I thought these gear boxes were metric. Do both fittings have a flare with a o ring or just pressure? I dont have any factory lines to go off of. Thanks