Instrument cluster bulbs

[ttyR2]

After replacing all the bulbs in the gauge cluster in my 2000 F-350, I notice part of the panel around the top of the speedo is darker than the rest. Looking through the bulbs I took out, it looks like most of the bulbs are 37's, some are 194's, but one is an odd size. On the back of the gauge cluster, it was in the hole marked 96JP. None of the other holes were marked with what appear to be bulb models. I can't read the markings on that specific bulb, and google hasn't turned up anything for Wagner 96 bulbs. Any ideas?

The local auto parts store didn't even know what bulbs I needed in the first place (until I did the research), so not sure how much help they can be.

[ttyR2]

The plot thickens.

I put the one odd-sized bulb back in and it definitely evened out the lighting of the gauge cluster, but I still haven't been able to ID the bulb. The plastic socket that this specific bulb sits in is also a different color from all the rest. Puzzling.

[STIgone73]

I need to replace a couple in mine one of these days. Where did you pick up the bulbs out of curiosity?

[ttyR2]

Most auto parts stores have them. The bigger bulbs are 194's (common model number), and the smaller ones are 37's. I still haven't been able to ID that one odd size bulb though. You can use a 37 in place of it but I noticed the darker area of the speedo when I did that.

[ttyR2]

Just did some more digging, and the single odd size bulb may be a Wagner PC74 which looks to be 0.5mm wider than the 37.

[STIgone73]

Right on. Might have to cruise by the local store here and pick some up.

[dentexpowerstroke]

to do this i'm guessing you have to pull the cluster out. is it pretty straight forward of just pulling the bezel and unscrewing a few screws?