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**WIDESIDE72** · 08-13-2008, 02:35 PM

Elco SS in Vietnam???

Here are some pics of the truck and SPID. As you can see, it lists a 350 engine and a turbo hydramatic trans. I sure wish I had the original drivetrain. I have a 355 I rebuilt that was in my 71 Elco back in high school, and a 700r4. I wonder what gear ratio is in the rear axle on this truck... If it is a 3.07, I have a 3.73 that came out of my dad's 71 GMC 6 cyl 3 spd truck that would work great with the overdrive trans. My brother had a truck almost identical to this when I was in high school in the 80's. It was 72 short step, originally 6 cyl, 3 spd, 3.73 rear gear. We built a very mild 355 and 2004r. With this drivetrain, we could SMOKE Monte SS's all day, and stay with the stock 5.0's Mustangs.

08-13-2008, 02:35 PM	#9
WIDESIDE72 Senior Member Join Date: Aug 2008 Location: Cedar Park, Texas Posts: 7,500	Re: SPID Question Elco SS in Vietnam??? Here are some pics of the truck and SPID. As you can see, it lists a 350 engine and a turbo hydramatic trans. I sure wish I had the original drivetrain. I have a 355 I rebuilt that was in my 71 Elco back in high school, and a 700r4. I wonder what gear ratio is in the rear axle on this truck... If it is a 3.07, I have a 3.73 that came out of my dad's 71 GMC 6 cyl 3 spd truck that would work great with the overdrive trans. My brother had a truck almost identical to this when I was in high school in the 80's. It was 72 short step, originally 6 cyl, 3 spd, 3.73 rear gear. We built a very mild 355 and 2004r. With this drivetrain, we could SMOKE Monte SS's all day, and stay with the stock 5.0's Mustangs. Attached Images