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Old August 1st, 2013, 04:16 PM   #1
davidkassie
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Default regearing a 1999 suburban

i have 3.73 gear now, hauling a full size blazer on a heavy trailer, want to regear possibly. is it worth going to 4.10?? just need a little more help on the hills. lol
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Old August 1st, 2013, 08:18 PM   #2
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What engine do you have? 454 should do fine, small block will benefit from 4.10.
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Old August 1st, 2013, 08:28 PM   #3
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5.7 ... is it worth the effort 3.73 to 4.10? And is the 10 bolt pretty durable hauling weight?
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Old August 1st, 2013, 09:22 PM   #4
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4.10 would help a lot 10 bolts are weak I have broke my fair share of them mainly pinion teeth breaking off and that was on a 3.42 set all we Richmond gears or gm
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Old August 1st, 2013, 09:29 PM   #5
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I am worried about the axle bearings under load. I can locate a 14 bolt 6 lug with 4.10 gears if its worth the extra cash.. thanks
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Old August 1st, 2013, 09:54 PM   #6
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id go with the sf 14 before id drop coin into a 10b again
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Old August 2nd, 2013, 07:39 AM   #7
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The semi-floater 14 bolt is a better choice than the 10 bolt for towing and hauling.
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Old August 3rd, 2013, 03:52 PM   #8
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Is it 4x4? if it is then you have to consider the front axle too. those are somewhat expensive and hard to find in 4.10 for a half ton since it would be better to change the whole axle. they are a pain to change too.
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Old August 3rd, 2013, 04:49 PM   #9
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Go with a 14 sf with 4.10 for sure. It a hell of a lot better than a 10 bolt. I had the same question about 3.73s to 4.10s; after a lot of research it ended up being a resounding change to 4.10 lol
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Old August 7th, 2013, 11:46 AM   #10
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so the gear change was worth the expense and effort?
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Old September 4th, 2013, 11:46 AM   #11
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I have a 14b 6lug in my burban with 4.10s. Pulls like a train.
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Old September 4th, 2013, 04:27 PM   #12
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do u think its worth the expense to go from 3.73 to 4.10?
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Old September 4th, 2013, 05:33 PM   #13
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I would. Depends on how often you tow and how far. I have towed plenty with stock gears. It will be a great improvement with bigger gears.
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Old September 4th, 2013, 08:05 PM   #14
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I make an annual trip to the u.p. about 500 miles one way.. other than that mainly 150 miles or so for mud bogs.. lags bad on the hills and have to stay in 3rd gear.. no overdrive. Will not hold speed in overdrive..
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Old September 4th, 2013, 08:06 PM   #15
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That makes a 12 hr tow at 55 mph.. lol
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Old September 5th, 2013, 12:54 AM   #16
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Re gear then. You wont regret it.
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Old September 5th, 2013, 06:13 AM   #17
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Good deal.. will be done soon.. Ty!
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Old September 5th, 2013, 06:20 AM   #18
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I love my 454 with 4.10s! 80 mph with a load. No sweat unless its a big hill. And even then just kick it down and she will maintain

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