Based on my experience, case to case basis rin kasi ang led bulbs sa gauge... minsan front firing leds will do (like sa Pajero FM ko) ...minsan naman wrap around leds ang kelangan... so minsan trial and error until you get the desired look and brightness...
if all else fails, its not bad to replace it with ordinary bulbs (for sure liliwanag pa rin yan since your bulbs are new) or if you have the money to spend, visit OneStopCustoms sa E.Abada sa Loyola Heights QC. They specialize in LED conversion of gauges and anything you can imagine of.
They have a facebook page, pakigoogle mo na lang... medyo pricey lang though since topnotch ang workmanship nila but I think its worth it (based on the pictures of their work and lagi puno dun sa shop nila)
leds on my panel gauge (front firing leds worked for me and not wrapped around)
