Anything for your truck needs to come from a 2000 up, computer wise. Anything in a 98 or 99 truck is not going to like talking to the Class 2 serial data bus. That includes overhead console DIC, gauge clusters, bcms etc.
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Exploration Machine- 02' CC V8 swap. 300K+
Portable Roller Coaster- 07' MKV VW GTI
Its another Jeep- 98 TJ