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Old 06-24-2010, 01:47 PM
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700R4 swap to a T-400 ?

I recently bought a 1986 C10 Silverado with a 305 motor and a broken 700R4, All i have to replace it with is a THM400. Can anybody tell me if it will be a direct fit or if ill need to change my driveshaft / Crossmember / and tranny mount? -Thanks

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Old 06-25-2010, 08:43 PM
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Quote:
Originally Posted by JoelHMcCarter
I recently bought a 1986 C10 Silverado with a 305 motor and a broken 700R4, All i have to replace it with is a THM400. Can anybody tell me if it will be a direct fit or if ill need to change my driveshaft / Crossmember / and tranny mount? -Thanks



Not a direct fitment. cross member is moved , drive shaft length is different, drive shaft Yoke is different(larger = 32 spline) on most t-400 short shaft trans
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Old 06-26-2010, 02:49 AM
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Regardless, you'll love the TH400. Strong as an tungsten ox transmission. It will survive a 40mph shift into reverse, ask me how I know...

Oh yeah, don't forget to hook up the downshift electrical connection on the th400 when you do swap it.
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