Quad beam headlamp question

[FrankieD61]

Hey all,

88 and 89 have quad beam headlamps. On the original Guide bulbs, maybe even the aftermarket Sylvania or Wagner bulbs, too, is a marking that read "UF" and "LF". Anybody know what that means?

Also, what are the part numbers of the high and low beams? Are they pinned differently so you can mix them up?

Last question: Do the high beams go on the inside?

Thanks,

 

[bluex]

H4701 is the high beam goes on the inside.
H4703 is the low beam goes on the outside.

The pins are in a different orientation between them so they shouldn't be able to get mixed up.

 

[bluex]

I think UF meant upper filament for high beam an LF meant lower but I can't remember that part exactly.

 

[FrankieD61]

I think UF meant upper filament for high beam an LF meant lower but I can't remember that part exactly.

Good stuff! Thanks!

Makes complete sense!!

 

[HotWheelsBurban]

H4071 is the high beam goes on the inside.
H4073 is the low beam goes on the outside.

The pins are in a different orientation between them so they shouldn't be able to get mixed up.

4701 High beam
4703 low beam
Easy to transpose numbers, I do it too

 

[bluex]

4701 High beam
4703 low beam
Easy to transpose numbers, I do it too

I had to read your post 3 times before I even saw my mistake. I was like that's exactly what I said

I do flip numbers alot...

I fixed it just to avoid future confusion. Thanks for catching that!

 

[HotWheelsBurban]

I remember having to know the different numbers for our square body Burbs. We had "round eye" , quad beams and with the '90, the little quad beams. I think I saw a couple of those on the spare parts shelf, have to see if they're good.

 

[HotWheelsBurban]

I remember having to know the different numbers for our square body Burbs. We had "round eye" , quad beams and with the '90, the little quad beams. I think I saw a couple of those on the spare parts shelf, have to see if they're good.

I looked on the shelf and all I found was the 4651-56 for the '84 Burb.... have not found anything for the little quads yet.