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4.10 and 3.73 gm part numbers for my 2009 sierra 1500

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Old 09-26-2009, 12:23 PM
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Default 4.10 and 3.73 gm part numbers for my 2009 sierra 1500

i want to swap the rear end and front with 4.10 or 3.73s

i have the 6 speed and stock 3.42s and would lift the truck with a 33 to 35 tires

what do i need to change with the ring and pinon and can i do this at home with simple tools
Old 09-26-2009, 02:31 PM
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i dont know the part numbers, but i HONESTLY wouldnt pay the stealership price on gears, install. they quoted me 1800 just to go to 4:10s parts cost 900 plus bearing and such.
yukon, motive are the only gears i run sir. if i was you being you'll have 35" tires id go down to 4:10s,4:30s
Old 09-26-2009, 02:41 PM
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x2 on the 4.30s. I would run atleast that if not 4.56s.. I am pretty sure rons machining service on ebay has everything you need. should be the same as 07-08s.
Old 09-26-2009, 07:24 PM
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idk about going lower than 410s even with a 35 tire with the 6 speed.... the 6l80e has a really low 1st gear...
4l60e...1st= 3.02
6l80e...1st= 4.02
just something to think about...
Old 09-28-2009, 03:36 PM
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thanx guys,but i live on the other side of the world and buying a thing from the internet so if i found them for cheaper price compared with yukon and motive +shipping and handeling costs ill get the stealership ones
Originally Posted by skipperdaddy
idk about going lower than 4.10s even with a 35 tire with the 6 speed.... the 6l80e has a really low 1st gear...
4l60e...1st= 3.02
6l80e...1st= 4.02
just something to think about...
6l80 1st =4.06 as i recall
yeah i know but the tires would be heavy and whats the faking point of having a 6 speed then?!
Old 09-28-2009, 05:41 PM
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lol... right right... 4.06 is what i meant...lol!
Old 09-28-2009, 07:18 PM
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im yet not sure
Old 09-29-2009, 01:52 AM
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4:10s!!!!! just call it a day
Old 10-04-2009, 06:47 PM
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ok a part# or a link to whats needed to be changed with the ring and pinion
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