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01-20-2022, 01:52 AM
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#1 |
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Senior Member
 Join Date: Aug 2005
Location: Los Angeles
Posts: 1,382
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TH350 vs. TH400
I have always wondered why in 1971 when automatic transmissions became available in 1/2 and 3/4 ton 4X4's GM used the TH350 only. The TH400 had been an option since mid-'66 in 1/2 and 3/4 4X2's but it wasn't until many years later it was used in 4X4's. Must have been a reason...
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1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90. |
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