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CastIron · 09-16-2020, 01:22 PM

I think GMC low beams just seem dim compared to Chevy headlights because of the smaller diameter. The high beams generally work well though. I have some some Hella H4 conversions and relays for my GMC, but I have yet to install them. I'm confident that they will improve performance though. There is too much volt drop in the original harness/switch.

09-16-2020, 01:22 PM	#15
CastIron Registered User Join Date: May 2013 Location: Oregon Posts: 326	Re: Best Affordable Headlight ($150 or less) I think GMC low beams just seem dim compared to Chevy headlights because of the smaller diameter. The high beams generally work well though. I have some some Hella H4 conversions and relays for my GMC, but I have yet to install them. I'm confident that they will improve performance though. There is too much volt drop in the original harness/switch.