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Author Topic: transmission tail shaft?  (Read 3345 times)

Offline shortchevy84

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transmission tail shaft?
« on: April 23, 2009, 02:47:43 pm »
i have an 86 short box getting a 700r4 trans implant, with no other transmission to take parts from. i will have to go to a wrecker, but i got a built up 700 for 400hp and need to know what size tailshaft i can get, (if there is diff sizes)and what a good donor vehicle would be, as i am certain finding a shortbox for a donor would be tough. will a 700r4 on a regular box work, or one from a suburban of the same vintages work? it is a 2x4 that i'm building. thanks
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Offline Captkaos

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Re: transmission tail shaft?
« Reply #1 on: April 23, 2009, 03:20:03 pm »
Tailshaft as in Yoke, you can get one from any SWB or LWB truck that had a 700R4.
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Offline VileZambonie

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Re: transmission tail shaft?
« Reply #2 on: April 23, 2009, 04:27:06 pm »
I'm not following you. Is this a 4x4 trans you are using for a 2WD?
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Offline Blazin

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Re: transmission tail shaft?
« Reply #3 on: April 23, 2009, 07:39:47 pm »
Length of the bed has nothing to do with transmission length. I might be incorrect but I believe 700R4's are 28 spline output shafts.
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Offline shortchevy84

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Re: transmission tail shaft?
« Reply #4 on: April 23, 2009, 09:39:31 pm »
ok, if the length of the yoke part, at the end with the speedo gear in it was the part i was talking about. it is a 2x4 truck the trans i ordered from a shop. but i think its ok now. i called them back, and they are getting me the part i need along with the proper gears to calibrate the speedo. crisis overted! lol
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Offline VileZambonie

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Re: transmission tail shaft?
« Reply #5 on: April 23, 2009, 09:42:54 pm »
Quote from: shortchevy84 on April 23, 2009, 09:39:31 pm
ok, if the length of the yoke part, at the end with the speedo gear in it was the part i was talking about. it is a 2x4 truck the trans i ordered from a shop. but i think its ok now. i called them back, and they are getting me the part i need along with the proper gears to calibrate the speedo. crisis overted! lol
 

OK I am really confused now and have no idea what you are saying but glad you got it all set.  :o
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Offline Captkaos

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Re: transmission tail shaft?
« Reply #6 on: April 24, 2009, 11:21:23 am »
FYI: 700R4 should be 27 spline OR 30 spline.
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