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Author Topic: th350 to th400  (Read 2890 times)

Offline unbludictable

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th350 to th400
« on: March 13, 2008, 03:37:01 pm »
I got a '76 GMC w/350 engine. The th350 went bad, should I....
     A) Put in the rebuilt th400 that I have and buy the universal conversion kit?

   or

    B) Buy a rebuilt th350 and keep on kicking?

I got the money for both, but I was told that the th350 works harder or just as hard as the th400? Is this true?
What harm would it do to put the th400 in?
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Offline VileZambonie

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Re: th350 to th400
« Reply #1 on: March 13, 2008, 05:26:05 pm »
There's no harm in putting in the TH400 it's just a more heavy duty transmission. If you take care of a TH400 it will never let you down.
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline unbludictable

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Re: th350 to th400
« Reply #2 on: March 14, 2008, 08:41:17 am »
Thanks!

 
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Offline unbludictable

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Re: th350 to th400
« Reply #3 on: March 14, 2008, 10:23:18 am »
I forgot to mention that my th350 is a long tail, but the th400 is short tail.

Does this pose a major problem? or Can I just buy the conversion u-joint that was suggested on this site?
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Offline VileZambonie

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Re: th350 to th400
« Reply #4 on: March 14, 2008, 12:51:23 pm »
If you're installing a shorter tail from say 9" in length difference you have to make up for it. That means longer driveshaft.
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,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10
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