C4 to C6 swap?

Clutch, transmission, rear axle

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1968flareside
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C4 to C6 swap?

Post by 1968flareside »

Will it bolt right in? Any mods needed to the driveshaft? Ijust picked the truck up from the shop and the tranny (C4) is going. It slips pretty bad going into 3rd. I found a C6 on ebay for $150 used.

http://cgi.ebay.com/ebaymotors/70-85-Fo ... 8001045093
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steveheer
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re: C4 to C6 swap?

Post by steveheer »

I know the C6 is longer so the driveshaft will need to be shortened. I think the perch for the transmission mount is located further back too but I would think you should be able to slide the crossmember back--probably would even have the holes drilled for you. I would think the linkage would take some messing around with too--but it should be doable.

I'm sure more will chime in here. I've done the swap but in my Mustang when I went FE--it was easy and in these trucks it should be even easier--
Steve
69 F100 300I6
67 Mustang fb FE 431ci
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1968flareside
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Post by 1968flareside »

Thanks, anymore?
1968 F-100 Flareside
1999 F-150 XLT 4X4
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pat67shorty
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Post by pat67shorty »

get a kickdown rod.
'67 SWB, 1970 car 390, Edelbrock Streetmaster intake, MSD 6AL, 780 Holley, Hedman headers, 2.5 duals, 3.54 D44 L/S, C6.
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1968flareside
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Post by 1968flareside »

Already done. Still acting up.
1968 F-100 Flareside
1999 F-150 XLT 4X4
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Post by fordman »

one way to fix it for sure is to get going down the road pretty fast and then slam it in reverse. that will fix it. because you'll have to rebuild it then.


only kidding you might have to rebuild it.
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