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ZERO MPG
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Exploring my options and I'm about to pull the trigger. Eaton or Richmond?

If you don't spend it your lady sure will. Bring home a new engine it will only hurt for a week.;:secret::secret:
 

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802 Posts
Eaton! Just cuz I like their name lol

Eaton Posi. Think about it :beer:
 
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Discussion Starter · #14 ·
Steelbeast, are you still running the 7.5 rear end ? A 383 is gonna put some pretty good torque on that little ring gear if it's the 7.5.....I tore up an 8.5 rear with the 406., but they are usually pretty tough.
Yea I am but I haven't stomped it from a dead stop yet. I always like to get a little roll before I put it to the floor.
 

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2,102 Posts
use good axles and stay away from slicks it will live a long time,just dont shock the diff. thats what usually breaks them
 

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VINTAGE MOTORHEAD
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4,102 Posts
I hope you have AAA.
 

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as far as i know yukons didnt come 7.5. should be 8.5 and 8.5 parts wont go into a 7.5. a 30 spline 8.5 will take a lot of abuse a 7.5 with good axles will take a lot of power without slicks.slicks will break a 7.5 with more 350 hp. i ran a 500 hp 406 for ten years and the only time i broke it was with slicks and it took 3 passes in the low 11s to do it. took 3 teeth in a row off of the pinion
 
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