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Old 12-12-2014, 11:18 AM   #1
wick89gt
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Some rear end info

Does anybody have any info on the rear end on my truck. Its a 68 long bed step side. 6cyl with 3 speed. What I'm trying to find out is possible ratio and what it can hold power wise. I'm not going for big power or anything yet. Just curious on what it can take without catastrophic failure. My plans are to pull out the 350 that is in the frame now and set on an '02 6.0 LSx with a 4L80E trans. Its a 300hp engine and with a can and tune, maybe a 350ish HP. Not wanting to go fast, just a nice cruiser.
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Old 12-12-2014, 11:35 AM   #2
LockDoc
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Re: Some rear end info

Quote:
Originally Posted by wick89gt View Post
Does anybody have any info on the rear end on my truck. Its a 68 long bed step side. 6cyl with 3 speed. What I'm trying to find out is possible ratio and what it can hold power wise. I'm not going for big power or anything yet. Just curious on what it can take without catastrophic failure. My plans are to pull out the 350 that is in the frame now and set on an '02 6.0 LSx with a 4L80E trans. Its a 300hp engine and with a can and tune, maybe a 350ish HP. Not wanting to go fast, just a nice cruiser.

Check out this thread I posted:

http://67-72chevytrucks.com/vboard/s...d.php?t=578793

If you scroll down to post #8 the pictures will show the location of the code numbers on most rear housings.....

If the rear end is in good shape and you don't beat it to death it would be fine.

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http://67-72chevytrucks.com/vboard/s...d.php?t=829820

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Old 12-12-2014, 11:54 AM   #3
wick89gt
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Re: Some rear end info

Thanks buddy. I'll have to do some number searching now.
I don't plan on hammering in it and beating the truck to death. I just hope to not have a 4.?? Gear. I know when these things were made, they never saw the highway or situations like we have in the modern world today. I regularly drive on the interstate. Some back roads also. Just didn't want the engine wound tight going up the highway and fear destruction.
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Old 12-12-2014, 11:56 AM   #4
wick89gt
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Re: Some rear end info

Eventually I will be doing a turbo set up but not any time soon. Probably next year. At that time I can find what rears will fit and what I need to do on fab work to make something work.
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Old 12-12-2014, 05:00 PM   #5
SS Tim
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Re: Some rear end info

IF you have a stock C10 it probably has 3.73 gears unless the optional 4.11 were ordered.

Power Team Charts (engine/transmission/gear ratio)


* VIN/Model Decoders
* Post Your Pickup SPID Blazer SPID Suburban/Panel SPID
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... Read The Factory Manuals... download 'em here
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