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insturment cluster swap?

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Old 08-15-2009, 02:24 PM
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Car: 84 Z28
Engine: 305 4bbl
Transmission: T5
insturment cluster swap?
I have a 84 z28 which has a speedo that only goes to 85mph. was wondering if its possible to swap that with a cluster from an 87 iroc in which the speedo goes to 145.
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Old 08-15-2009, 02:48 PM
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Re: insturment cluster swap?
Its basically plug and play.You should be good to go
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Old 08-15-2009, 04:07 PM
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Re: insturment cluster swap?
https://www.thirdgen.org/gauges
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Old 08-15-2009, 05:20 PM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: insturment cluster swap?
Originally Posted by 09ZR1
I have a 84 z28 which has a speedo that only goes to 85mph. was wondering if its possible to swap that with a cluster from an 87 iroc in which the speedo goes to 145.
If your 84 cluster functions as designed, I'd recommend simply swapping the 145 speedo head into your cluster, thus avoiding any possible electrical gremlins.

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Old 08-15-2009, 07:18 PM
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Car: 95 Z85 S10, 99 Formula
Engine: 4.3 CPI , LS1
Transmission: NV3500, T56
Axle/Gears: 3.08, 3.42
Re: insturment cluster swap?
Originally Posted by JamesC
If your 84 cluster functions as designed, I'd recommend simply swapping the 145 speedo head into your cluster, thus avoiding any possible electrical gremlins.

JamesC
exactly what i did
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Old 08-19-2009, 04:04 PM
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Car: 84 Z28
Engine: 305 4bbl
Transmission: T5
Re: insturment cluster swap?
Originally Posted by JamesC
If your 84 cluster functions as designed, I'd recommend simply swapping the 145 speedo head into your cluster, thus avoiding any possible electrical gremlins.

JamesC
gremlins...lol, im gonna try the whole cluster. my tach dosnt work and i dont think my trip works, the car isnt street legal yet so i really havent had it on the road to check the odo. do i need to change any speedo cable gears?
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Old 08-19-2009, 05:49 PM
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Axle/Gears: Limited Slip 3.23's
Re: insturment cluster swap?
Originally Posted by 09ZR1
and i dont think my trip works.... do i need to change any speedo cable gears?
Here's the fix:

https://www.thirdgen.org/forums/faq-...-fix-pics.html

No, straight swap.

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