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Old February 24th, 2006, 11:45 AM   #45
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Originally Posted by Roadhouse
Jason, did the 1/2 ton Suburbans w/6.5TD still used the 1/2 front diff or the 3/4 ton 9.25". And I assume in the 1/2 tons they put the 4l80e behind the 6.5TD and not the 4l80e like my 5.7L has.

Now the Blazers with the 6.5TD what rear axle did they use the SF 14 or 10bolt?

Whats really sad is tow ratings on some Suburbans. My 99 w/5.7L and 3.73 gears is rated to tow 6000 or 6500....the Suburbans 1/2 & 3/4 w/6.5TD are rated to tow the same amount. Oh you could also get 4:10's with the 6.5TD in Burbys. I don't believe the 4:10's where availible for the 5.7L only 3:42 & 3.:73.
Blazers with the 6.5 used a 10 bolt :tonka: I am not sure what GM was thinking, but (knock on wood) it has held up to 210,000 and I know a guy with a 6.5 in a half ton truck with 240k on it...

I THINK all the 6.5TDs had the 4l80e... every 6.5 I have seen has at least, if it did not have a stick.
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