Swap regular instrument cluster for rally style

[carmangary]

I pulled a couple rally style instrument clusters from a 79 and 80 Cutlass today. I guess you call they rally style. They have rpms, temps, pressures etc. I would like to swap out my normal instrument cluster from my wagon and put one of these in.

What is involved in doing that? Are there any wiring changes that need to be made under the dash? Is it worth the effort?

 

[86Cutlass383SR]

Here's a swap from granny style speedo to the rally pac.

http://tech.oldsgmail.com/eint_rallye_swap.php

 

[carmangary]

Awesome! Thanks man!

 

[crucial118]

Gauges only look good. Don't trust them.

 

[carmangary]

So you're saying the guages are inaccurate? Or are the senders inaccurate?

 

[crucial118]

Well, sometimes they work and sometimes they don't. I have the rally pac and my oil pressure gauge stayed around 20psi, voltage around 12V, temp worked most of the times, and gas was a quarter off(prob bad sending unit). I just put aftermarket gauges under the radio for water temp, voltage, and oil pressure. Better safe than sorry.

 

[Bonnewagon]

Some cars are very easy to swap over. Pontiac A/G bodies are wired for both types, just plug and play. My Chevy I had to do a little creative wiring.

 

[86Cutlass383SR]

When I went from the granny pac to the rally gauges I had to do some moving of terminals but I used the very same linf to go mine and they came out great. As was mentioned, the gauges are over 20 years old now and mine weren't the most accurate. It seems as if it's hit or miss.

 

[carmangary]

Well, I just realized that the rally gauges don't have the PRNDSL indicator. So, I am not going to use them. I'll probably put them on Ebay. Bummer.

 

[crucial118]

U can prob sell them on here.