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Speedometer Recalculateion 1991 GMC Sierra
I installed 22" rear rims with 295/35/22" tires and speedo is not accurate as in showing less MPH. Does this 700R4 need a computer recalculation.... if so who performs this type of work? Thanks in advance for responding to my question!- 1Rad1955
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- Replies: 1
- Forum: Transmissions
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Valve Covers Removal
I have a 1991 GMC Sierra 1500 with a 305 v8 and want to remove the the valve covers to install billet ones. I'm use to removing the four bolts and removing them on older SBC engines. but appears to be much more involved in this 305 engine. Please provide a list of what engine components have...- 1Rad1955
- Thread
- Replies: 2
- Forum: Engine Performance + Maintenance
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Purple Starter wire / Interior toggle switch theft deterrent
I want to install an interior toggle switch to disable the starter by interrupting the current to the purple ignitiion/silinoid wire. I would like to cut this purple wire under the dash instead of going into the engine compartment. Please advise as to the exact location of this purple wire...- 1Rad1955
- Thread
- Replies: 9
- Forum: Audio + Electronics
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What Wire to use to install a security toggle switch
I would like to install an ignition cut off security switch on my 1991 GMC Sierra 1500. I noticed a pink wire coming out of coil to the back of the distributor. Any issues using this wire to cut off power to distributor? Also what Amp toggle switch should I use? Thanks in advance for your input...- 1Rad1955
- Thread
- Replies: 14
- Forum: Engine Performance + Maintenance
