Recent content by Blackandgold26
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8.1 Vortec 496 Gas Or 5.9 Cummins Diesel For A 1983 C20 4 Door Dually With A Turbo 400 3 Speed Auto
For a 1983 C20 Dually 4 door with a 4:10 Gear Ratio, 454 Carburated engine, and Turbo 400 3 Speed Automatic Transmission. I'm trying to figure out what is the better engine choice out of a Cummins 5.9 Diesel or a 496 8.1 Vortec? The current engine such as the 454 has a light knock to it which...- Blackandgold26
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- Replies: 15
- Forum: Engine & Performance
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Problem with a Turbo 400R4 Transmission in my 1990 Suburban V8 4x4.
I have a problem with the Transmission in my 1990 GMC Suburban SLE V1500 4x4 5.7 350 V8. It's a Turbo 400R4, and the problem is that it cam shift from 1-2 gear but not into 3rd. I bought the vehicle from the last owner and he told me about the problem. He said that he was at a stop light...- Blackandgold26
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- Replies: 1
- Forum: Automatic Transmission
