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Old 03-24-2003, 08:03 PM   #1
69ChevySB
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manual to automatic

hi, i just installed my new summit headers and there is a very tight fit, and now i cant get my clutch linkage back to where it was...i was thinking about switching to automatic anyway...can anyone please give me a list of the exact items i will need to convert over and how hard is it really? also how much am i looking at to convert over using all used stuff. thanks,
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Old 03-24-2003, 08:17 PM   #2
CPNE
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1.Column
2.Tranny Linkage consisting of rod with compression nut, frame pivot bracket, tranny "C" bracket and swivel bracket that rsts on pivot bracket and engages "C" bracket
3.Tranny
4.Tranny crossmemember
5. New or modified driveshaft, unless manual tranny is 3 speed in which case you may not have an issue here
6. Dash wiring harness for backup and reverse neutral/safety switches. Again, 3 speed manual willl have rev wiring in place but not neutral/safty wiring.
7. Flexplate and starter

probably more
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Currently on or near the homestead:

67 Chevy SWB 2WD stepside 350/3 on tree (Pat's)
67 GMC SWB 2WD Fleet 402/auto (Brian's under construction)
67 Chevy 3/4 ton 2WD 402/auto (Business Hauler)
67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC)
68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC)
70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC)
71 Chevy SWB stepside (Crushed by tree - parts donor)
72 Chevy 3/4 ton 4WD (Parts donor)
72 Chevy 3/4 ton 4WD Suburban (Parts Donor)
72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC)
81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler)
82 Camaro Z/28 355/Super T-10 (Pat's toy)
93 Caprice 9C1 (Brian's Cop Car)
02 Toyota Camry (Reliable but a souless steel and plastic hulk)
2011 2SS RS Camaro M6 Factory Hurst Shifter

Maybe I need to sell some of this crap

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Old 03-24-2003, 09:27 PM   #3
LudwigTheMad
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CPNE a whole colum??? jeese I'd just use a aftermarket floor shifter.....makes the whole thing a lot easier...run a couple of wires the ignition for the safety switch, and another pair for the backup lights.....

The aftermarket ones work with a cable, so you wouldn't need to worry about the linkage....

as for the driveshaft, you would have to measure the length of the manual tranny and see if one of the different sizes of 350 would fit without mods.....

Haven't done this conversion on a chev truck, but did do it on a studebaker...(chev motor and trans now...)
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Old 03-24-2003, 10:00 PM   #4
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May have to change the radiator for the tranny lines, or put in a tranny cooler........
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Old 03-24-2003, 10:07 PM   #5
CPNE
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Ludwig, he's looking to use used stuff, so I assumed he was looking for a donor vehicle to grab these parts from.

#10 should have whispered that in your ear (LOL)

Forgot the radiator part as well.
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Currently on or near the homestead:

67 Chevy SWB 2WD stepside 350/3 on tree (Pat's)
67 GMC SWB 2WD Fleet 402/auto (Brian's under construction)
67 Chevy 3/4 ton 2WD 402/auto (Business Hauler)
67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC)
68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC)
70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC)
71 Chevy SWB stepside (Crushed by tree - parts donor)
72 Chevy 3/4 ton 4WD (Parts donor)
72 Chevy 3/4 ton 4WD Suburban (Parts Donor)
72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC)
81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler)
82 Camaro Z/28 355/Super T-10 (Pat's toy)
93 Caprice 9C1 (Brian's Cop Car)
02 Toyota Camry (Reliable but a souless steel and plastic hulk)
2011 2SS RS Camaro M6 Factory Hurst Shifter

Maybe I need to sell some of this crap

Yet another Bozo with a sawz-all
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Old 03-24-2003, 10:39 PM   #6
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Your better off plumbing to aux tranny cooler and bypassing the rad all together. Most rads even with stick have the tranny cooler on them, there just pluged off.Get a good size cooler to make the tranny last. You also need the kickdown linkage and mount. Most used trannys will have the cable but not the mount that bolts to the back of the intake manifold. You will need the vacume take off that is also on the intake and the modulator vacume tube. I did mne about 8 months ago and think it's the best thing I've done to the truck.
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Old 03-27-2003, 12:41 AM   #7
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Kick down cable....ooops sorry I did a th400 with electronic kick down.....


and of course the other stuff.......\

#10 did wisper it in my ear, I was just kinda distracted by milk spay and apple jacks he was kinda spitting at the time....

oh and he doesn't quite get the commercials...you see to him it does tast like apples.....
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