Credit: eng92
This is part of a full 3.5 swap that I will be doing in about a month.
I got a great deal on an 03 gauge cluster ($25 CDN) because one of the three mounting brackets was broken off. For the swap that is ok because all three brackets are in different locations compared to a 4th gen.
Here is the 03 cluster with the 2 remaining mounting brackets cut off.
I fabricated the two lower brackets out of polyurethane using a plaster of Paris mold I made of my stock 98 cluster. For the top bracket, I just reused the one I cut off by gluing it in at the correct position and angle.
Here is the gauge cluster with the new brackets.
Here it is installed without the finishers on.
And with the finisher installed.
Check out the mileage on the odometer 3619 km (~2250 miles)
As far as wiring is concerned, you pretty well need to have a section of the the 03 dash harness as the three gauge cluster connectors are completely different from the 4th gen. I had the 03 harness already as I am using a portion of it for the engine swap. It was simply a matter of going through the 98 and 03 wiring diagrams and splicing the appropriate wires.
IMO this mod is not worth it unless you are doing a full 3.5 swap. The only nice feature that the 03 cluster adds is the board computer which displays: ambient temp, trip timer, ave. trip speed, fuel consumption and estimated driving range based on remaining fuel.
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