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4wd relay
I have a manuel transfer case with a quick accuator system on this trucks 4wd system. It has a realy GM part #12182086 that is internally melting about every three months. I have never seen a system like this and the relays are about impossible to get and very... Login to read more. 
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| Engine | 7.4 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
1997 Chevrolet K3500 7.4L
| Engine | 7.4 L |
| Trans | 4-speed Automatic (Electronic) |
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