Author Topic: rear end gear swap question  (Read 9843 times)

Tim175

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rear end gear swap question
« on: July 09, 2009, 02:08:43 PM »
can anyone tell me where i can get a good guide for swapping out the rear end gears on a 72? i think i know what i'm doing, but just to double check my steps. thanks

Soaring

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Re: rear end gear swap question
« Reply #1 on: July 09, 2009, 03:17:26 PM »
Tim
I and many others will tell you that if you haven't done it before with a pro watching, then don't do it yourself.  Take it to a shop.  It is just too complicated to get the gears all lined up perfectly.  However, if you are hard headed like me, and after reading this you still want to do it, be my guest.  ;D After reading the tools list, and if you will need to buy those, it would be cheaper to have a pro do it. 
http://www.differentials.com/install.html

Tim175

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Re: rear end gear swap question
« Reply #2 on: July 09, 2009, 03:34:01 PM »
i would still like to do it because i don't like having other people work on my cars, nor would i want to spend that much. however if it is that complicated then i will probably just take it to a pro. thanks

Soaring

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Re: rear end gear swap question
« Reply #3 on: July 09, 2009, 03:44:51 PM »
Well, read the "how to" article I gave you first before deciding. 

Tim175

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Re: rear end gear swap question
« Reply #4 on: July 09, 2009, 04:04:56 PM »
well after reading it, it sounds like something that with enough patience and time i could probably do but just to be on the safe side i might just take it to a shop, i still have some time to think about it though. thanks for the link

Soaring

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Re: rear end gear swap question
« Reply #5 on: July 09, 2009, 04:32:24 PM »
I said take it to a shop out of experience.  When I was young and was made out of steel, I tried to change gears in a 1946 British Ford.  I did it, but it raised hell when I drove the car.  I didn't know anything about shims and such.   ;D  Yes, given time and enough patience, you could most likely do it and it would turn out great.  That is, if you have a good sized shop with a strong workbench with a massive vice and all the tools that are listed. 
Good luck with whatever you decide to do. 
My 21 year old Nephew brought his 02 GT to my shop and a brand new 4:11 gear and through his white teeth said, "hey uncle, can I get you to put this gear in my rear?"  I took the gear and placed it in his butt, and told him to take it to a shop.   ;D

flyingdutchmanfc

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Re: rear end gear swap question
« Reply #6 on: July 11, 2009, 07:58:39 AM »
I had it done a few years back, they charged me 150.00. I had the rear end out of the car already.

Soaring

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Re: rear end gear swap question
« Reply #7 on: July 11, 2009, 03:03:10 PM »
I had it done a few years back, they charged me 150.00. I had the rear end out of the car already.
  I would expect it to cost more.  These guys are charging $100 bux an hour nowdays. 

Tim175

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Re: rear end gear swap question
« Reply #8 on: July 12, 2009, 02:10:28 PM »
yeah labor runs $100 an hour now at all places so...ll probably just take the rear end out and bring it in because that will save me some money for labor.

FASTBACK65GT

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Re: rear end gear swap question
« Reply #9 on: July 13, 2009, 05:31:11 PM »
I recently asked the cost to switch my gear from a 3:00 to a 3:50 or :55 and I was quoted $650 and that included the cost of a new set of gears.  I had some similar work done previously on my old red Mustang and for them to get inside, and put new fluid, new gaskets, new crush seals, etc. was $300.
This was from a first class shop too.

jethat

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Re: rear end gear swap question
« Reply #10 on: July 13, 2009, 06:45:55 PM »
thats one of the few things left on my car and after thinking about it when I do it (if I dont sell the car first) it will go to a shop. I've been quoted $700 to regear it and install new clutchs. I have a 71 9 inch traction loc.

Tim175

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Re: rear end gear swap question
« Reply #11 on: July 13, 2009, 07:59:02 PM »
are those prices with the rear end still in the car? because ill take mine out and just take that to them so i can save as much as i can

Soaring

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Re: rear end gear swap question
« Reply #12 on: July 13, 2009, 08:06:33 PM »
It will probably save you about 2 hours of labor, so take about 200 bux off those prices. 

Tim175

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Re: rear end gear swap question
« Reply #13 on: July 13, 2009, 08:37:12 PM »
alright thanks for the help guys i appreciate it.

jethat

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Re: rear end gear swap question
« Reply #14 on: July 13, 2009, 09:37:34 PM »


i dont see why it would save that much in labor the rear end can be rebuilt without removing it from the car.

Tim175

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Re: rear end gear swap question
« Reply #15 on: July 13, 2009, 09:44:18 PM »
it saves money because they charge for labor by the hour so if i take some time away from them working and do it myself that labor is free.

jethat

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Re: rear end gear swap question
« Reply #16 on: July 13, 2009, 10:15:15 PM »
But... There is no need to remove the thing from the car.. It can all be done at the shop while its in the car. So removing it unnecessarily isnt going to save you anything. They just put it on a hoist and lift it up heck I think its easier to do it in the car.. Call a gear shop in your area and ask them. Me thinks taking it out saves you nothing.

FASTBACK65GT

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Re: rear end gear swap question
« Reply #17 on: July 14, 2009, 07:51:54 AM »
I agree with JETHAT, as they shouldn't have to remove the rearend.  They did the work before on my first car with it still in place.

Soaring

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Re: rear end gear swap question
« Reply #18 on: July 14, 2009, 04:43:50 PM »
It can be done while still in the car, but it is a lot easier to do it on a workbench mainly because the mechanic doesn't have to look up to do the work while the car is on the lift.  Fitting the shims is also more accurate and easier with it on the bench as well.  I would talk to the mechanic and see what they prefer before I did anything. 

Tim175

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Re: rear end gear swap question
« Reply #19 on: July 14, 2009, 04:56:55 PM »
alright yeah ill just go ahead and ask them if they would do the work with it in or out of the car and go from there, thanks everyone

 

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