Okay I have a 2002 LS Monte Carlo that I was looking to do a gague cluster swap from LS to the SS with the oil gague and volt read out for looks due to no oil pressure sender. But heres my question which years of the SS had the twist off bulbs in the gague cluster because I pulled a gague cluster off a 2000 SS that was wrecked and found that the lights were soltered in and I already purchased the LEDs for the twsit ins.

 

All 2000+ clusters use soldier in bulbs.

There currently is no known easy way to make the oil pressure readout work. I recommended a member doing that swap switch out the connector and the oil pressure sending unit. Still did not work. I speculate there is a hidden setting in the PCM for it.