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Old 11-26-2010, 08:56 PM   #1
Youngbuck7072
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will this tranny/TC combo work??

this guy has a SM465 and NP208 for sale, and i have a 350/350 combo. will this combo bolt right up right under my truck, or will there have to be some modification, besides the hole in the hump?
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Old 11-26-2010, 09:02 PM   #2
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Re: will this tranny/TC combo work??

I wouldn't exactly say "bolt-up".You should have posted this in the 4wd message board where such swaps are better known.It's not exactly 67-72 specific.
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Old 11-26-2010, 09:09 PM   #3
Youngbuck7072
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Re: will this tranny/TC combo work??

well it kinda is, being that my truck is a 70. im wondering if i will need to shorten up the driveshaft, get different mounts, and the whole thing with the bellhousing.
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Old 11-26-2010, 09:15 PM   #4
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Re: will this tranny/TC combo work??

You are looking at a bunch of changes here, not the least of which is an automatic to manual conversion. The SM465 is quite a bit shorter than a TH350, so I'm pretty sure your driveshaft lengths are going to change. What kind of TC do you have now?

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Old 11-26-2010, 09:16 PM   #5
Youngbuck7072
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Re: will this tranny/TC combo work??

i have no idea.
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Old 11-26-2010, 11:41 PM   #6
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Re: will this tranny/TC combo work??

For a lot more information go to www.coloradok5.com A 350 usually came with a 203 tcase behind it. The 465 or 435 trannies are good and the 208 is an aluminium case that will not take a big hit but usually for most is strong enough. I would go with the 4 speed and a 208 in a minute. If you get a pedal assembly and linkage it is not that bad of a swap. If you do have the 203 tcase i would be glad to get rid of the boat anchor. I am not a fan of a 350 tranny niether. When i ran a 350/3 on the tree /205 setup i got about 3-5 mpg more than a like truck i had the 350/350/203 setup with all else the same. Do not really like the part time kits for a 203 either. The hump i think is different but go with a 2" body lift and should only have to cut 1 hole for the shifter. Again go to ck5 for lots of info.
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