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Author Topic: 4 speed transmission  (Read 1282 times)

Offline Stepside Billy

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4 speed transmission
« on: October 13, 2019, 09:48:17 AM »
Hey all! Haven't been on in a while but I am picking up a 1983 C-10, 2 wheel drive, 350 with a three on the tree. What 4 or 5 speed transmission will bolt in without too many mods? Would rather not have the granny gear. Thanks!
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1987 G.M.C Stepside 4X4, 350, 700R4

Offline zieg85

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Re: 4 speed transmission
« Reply #1 on: October 13, 2019, 04:47:13 PM »
Zero modifications to drive shaft if you can find a NP440 3 speed OD manual.  A Muncie M20 or Saginaw 4 speed also will fit in place of your Muncie 3 speed.  If you want to go automatic a short tail shaft TH350 also is the same length.  Others will require driveshaft mods
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Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
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Offline Stepside Billy

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Re: 4 speed transmission
« Reply #2 on: October 13, 2019, 09:07:09 PM »
Quote from: zieg85 on October 13, 2019, 04:47:13 PM
Zero modifications to drive shaft if you can find a NP440 3 speed OD manual.  A Muncie M20 or Saginaw 4 speed also will fit in place of your Muncie 3 speed.  If you want to go automatic a short tail shaft TH350 also is the same length.  Others will require driveshaft mods
Thanks for the reply. I know of a few Saginaw 4 speeds around me for sale.
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1987 G.M.C Stepside 4X4, 350, 700R4
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