Dual Disc front end on GS400L

[Andy]

My 79 GS 400 is a single front disc with stock star style mags.

I see some GS750's came with a dual disc front end - What do I need to convert to this setup? Obviously the master cyl, hoses, calipers, and a dual disc wheel. My big question is the forks:

Do I need a complete GS750 front end or just a fork slider with a mount for the second caliper?

Thanks
Andy

[Nessism]

You need the complete front end. The brake disc on your bike is larger than a dual disc bike so you need new forks with the caliper brackets in the proper location.

You would be better off just getting a stainless-teflon brake line, or maybe talk to Salty Monk (Dan) about an adapter to put a more modern caliper on your bike with single disc.