Isn't it a possibility that the TH350 bolts in place of a PG? Meaning, the drive shaft is good-to-go? Also, a TH350 has better ratios than the TH400 (which I have). I remember that my sons' truck had a 350, and it was much peppier than my TH400.
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Member Nr. 2770
'96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed.
'69 C-10 SWB; 350/TH400 - in limbo
The older I get, the better I was.
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