EDIT: This took awhile to type so I see you answered. Swapping anything 92-94 is direct plug and play, 88-90 is as well while 91 is an oddball year. Maybe you should calm down some before spouting off that someone is wrong.
Original post before the edit:
I'm a little lost on what year you swapped to what here, but comments like that towards some of our senior members are really not appropriate. Richard is a very respectable knowledgeable person and someone I respect highly within the GMT400 community. There have been many like him who have left over time due to the overall lack of respect for eachother.
Now.
Clusters don't make any difference if they are 1500/2500/3500 in these trucks. Here is everything I've learned over the years about these clusters.
Clusters worked like this:
88-90:
- All trucks had moonie clusters.
- Offered in dummy light and full gauge version. Gas and Diesel Variants (A/T vs M/T was just a block out plate).
- DRAC integrated within the cluster.
- 85 MPH with no tach, except the 90 454SS which was 110 MPH with no tach.
91:
- Gauges offered in moonie or needle style gauges with tach.
- Gas and Diesel Variants (A/T vs M/T was just a block out plate).
- DRAC integrated within the cluster. Tach cluster with needles was a 1-year only cluster
- 85 MPH, except the 91 454SS which was 110 MPH with tach.
92-94:
- All trucks had needle style gauges.
- Both non Tach and Tach clusters offered. Gas and Diesel Variants (A/T vs M/T was just a block out plate).
- DRAC external from cluster. The cluster plug within the dash changed significantly. within the cluster.
- 85 MPH, except the 92-93 454SS which was 110 MPH with tach. 454SS cluster has warning light "Traction Active".
95:
- 1 year only cluster. All clusters have tachs. All clusters go to 5k RPM.
- Gas, Diesel, Auto, Manual variants.
96-end of GMT400 production:
- All clusters have tachs, Gas motors go to 6k RPM, diesel stays at 5k.
- Gas cluster tachs - Some show a redline, some do not. Unsure of rhyme or reason as I've seen both variants in big and smallblock trucks.
- A/T and M/T clusters differ in print due to "PRND321" and "shift from park"
- Most clusters go to 100 MPH, with some exceptions below
- Some later clusters were 110 MPH (Have yet to find rhyme/reason behind this). Somewhat uncommon. A/T only.
- 99-00 Escalade, Yukon Denali and Limited Tahoe were 120 MPH with teal backlighting and white needles. A/T only.
- Police Tahoe Packages: Both 100MPH certified and 130MPH certified clusters. Both uncommon. A/T only.
- Later clusters have "Service 4wd" dummy light for Autotrac T-Case.