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06-22-2018, 06:18 AM
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: how to tell a th350 from a th400
Keep it simple. The first answer in this thread is the simplest. Just look at the pan. That works whether the transmission is installed, laying around loose, complete or just the case. The TH350 is slightly oblong front to back with one 45 degree corner.
Both TH350 and TH400 use M49 option code for some odd reason. That's like using the same code for all V8s or all I6s.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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