After being tired of not being able to see the road, and the fact that the left low beam burned out, I purchased some Sylvania XTRAVision headlights for my 68 bird. After the normal hassle of trying to get the headlight back into the bucket, I went to connect the 3-prong socket to the light and it just barely slid on. The slightest touch and it fell off. I'm sure the first real bump I would hit on the road would have knocked it off. I finally figured out that the tabs on the new bulb do not extend out from the back of the bulb like the original T3 bulb. The T3 has moulded tits that extend out about 3/8" and the tabs are attached to the end of the tits. That 3/8" difference is what keeps the plug from securely fastening to the light. I could probably trim down the socket but that would be a last resort. Are there any halogen lights on the market that have the correct tabs?