1986 GMC LS SWAP. What size are both fittings in the steering gearbox? I need 6AN for both

[Nasty-LSX]

I called HOLLEY, CPP, and a few other companies with no luck. No one knew the port size for pressure and return fitting! I only need fitting sizes for gearbox.

Does any know the size of these 2? I need 6AN fittings Thanks.

 

[Nasty-LSX]

So I have one person telling me They are 11/16x18 and 5/8x18 Does this sound right?
I thought they were MM (METRIC) thats why Im insure.

 

[yevgenievich]

Metric O ring style if for 86

 

[yevgenievich]

M16-1.5
M18-1.5
But takes an oring to seal

 

[yevgenievich]

PSC AN to Metric Adapter Fitting -6AN to 18mm x1.5 #SF01 - WARR Performance LLC

Performance Steering Components AN to metric fittings adapt to your fastening needs. These steel fittings have a zinc finish. From AN to metric ports, PSC will get you connected Fitting Category: AN to Metric threads Fitting Angle: Straight Fitting Material: Steel Fitting Finish: Zinc O-Rings...

warrperformance.com

 

[Nasty-LSX]

M16-1.5
M18-1.5
But takes an oring to seal

THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU

 

[yevgenievich]

Worth checking to verify if current hoses used oring. Parts get swapped around