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Old January 8th, 2008, 06:24 PM   #1
Spudy
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Install question

Hey all
I have some new gears I want to put in my cj7(dana 30 & amc 20) Was wondering how hard is it to do the gears myself? Also what is the cost of having them done at a shop. I already have one install kit and need to get the other. If it matter the gears I got are already on the carrier. going 2.73 to 3.54. Also is there anyone in my area that would help me?
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Old January 8th, 2008, 07:30 PM   #2
Kodiak450r
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if you have to ask then it's too hard. shops charge anywhere from 200+. you need to make sure you set the pinion depth and ring gear backlash properly or you'll have a noisy gear set and they'll wear out fast. if you didnt' live so far away i'd install them for you. i charge 125 per axle. the local shop wants 300 per axle. you'll need at the least a bearing puller but it's better to have a shop press and bearing splitter. you'll also need a pinion depth gauge and a dial indicator for backlash measurements. i also always check ring gear runout prior to and after gear install to make sure the carrier isn't warped which will affect backlash and proper contact patch. there alot more to it then simply slapping in a new gear set and saying it's good.
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Old January 8th, 2008, 10:13 PM   #3
Big Daddy Rubicon
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Quote:
Originally Posted by Kodiak450r View Post
if you have to ask then it's too hard. shops charge anywhere from 200+. you need to make sure you set the pinion depth and ring gear backlash properly or you'll have a noisy gear set and they'll wear out fast. if you didnt' live so far away i'd install them for you. i charge 125 per axle. the local shop wants 300 per axle. you'll need at the least a bearing puller but it's better to have a shop press and bearing splitter. you'll also need a pinion depth gauge and a dial indicator for backlash measurements. i also always check ring gear runout prior to and after gear install to make sure the carrier isn't warped which will affect backlash and proper contact patch. there alot more to it then simply slapping in a new gear set and saying it's good.
X 2! Thats a real fair rate he has offered you! Hell I set gears but for that price I'll let him set them.
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Old January 10th, 2008, 01:12 PM   #4
Spudy
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Looks like I need to save my pennies lol. I hate being on a budget. that is a good price but I wish you were not so far away
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Old January 10th, 2008, 01:20 PM   #5
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That is a very good price, I installed mine myself and after that I think I would charge around $1000 per axle..... It was a pain in the a$$ but a good learning experience. Oh and you can do it without a pinion depth gauge but you do need a dial indicator like kodiak said (around $250.00) and a dial indicating inch-lb torque wrench (around $200.00). So if you dont have either of those tools it may actually be cheaper to have the gears installed. If you do a lot of research though (like I did) it is possible to do it yourself. Mine have been fine and I learned how to do it off of the internet.
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