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Old 09-18-2003, 12:25 PM
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How to hookup passing gear to carb?

I have a 65 Chevelle with the 283. The previous owner swapped the trans to a 350 turbo. He never did hookup the passing gear cable to the carb. He said that he would just throw it into the lower gear when needed. The carb is a cartrer 4 bbl, and I can't see any linkage to hook the cable to. Is there a adapter or something to make the passing gear work. What adjustments are needed to the cable for proper operation? Also when swapping the trans can it effect the speedometer calibration?

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Old 09-18-2003, 03:17 PM
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You need the TV Cable and a TV cable bracket. If you have a quadrajet, just get the bracket at a junkyard, or you can buy a chrome one at AutoZone
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Old 09-18-2003, 08:27 PM
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The kickdown cable will not effect the speedo at all. Its a totally seperate monkey.
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Old 09-20-2003, 06:25 AM
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Also when swapping the trans can it effect the speedometer calibration?
The drive and driven gears for the speedo vary depending on the rear end ratio. You need to find out the rear end gear ratio and get the proper gear set for the trans.
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Old 09-20-2003, 08:38 AM
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One thing that GM did right with the TH350 was make it relatively easy to change the speedo gears. The driven gears are available in alot of different teeth. If you check and find out what way the speedo is off, and how much you can generally change the gear to adjust it. If you check at a trans shop they usually have boxes of those gears sitting around. If you can;t get it right that way, you can change the drive gear by simply removing the tail housing, slipping the old one off and the new one on. They are held in place by a small clip. Knowing the gear ratio may help, but the tire size will also change the speedo. Also you would need to find a chart to tell you which gears to use for a specific gear ratio and tire size.

HTH
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