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76 GMC short bed 4x4 which tranny to use

1K views 2 replies 3 participants last post by  SSedan64 
#1 ·
I have a 76 GMC short bed 4x4 with a built 350 out of a Vet, some are telling me to put a short shift kit in my manual tranny and others are telling me go with an automatic ???
 
#3 ·
X2^^ on above.
If you want an Auto, a 87-92/93 TH700R4 is a good choice.
Has a low 3.06 1st gear for take off + .70 OD/4th gear for MPG.


Trans-------1st Gear---2nd Gear----3rd Gear------4th Gear
TH700R4-----3.06-------1.62--------1.00----------0.70
4L80E--------2.43-------1.49--------1.00----------0.75
 
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