4R100 Rebuild difficulty level? - Ford Powerstroke Diesel Forum
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Old 03-07-2010, 01:17 PM
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4R100 Rebuild difficulty level?

Can anybody give an idea how difficult it is to rebuild the 4R100? Are there any specialty tools involved? I rebuilt the C6 in my Bronco without any trouble. How would rebuilding the 4R100 compare to the C6? Any help would be greatly appreciated.
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Old 03-08-2010, 11:47 AM
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Yes you need special tools. Buy the parts, bring it over and I will show you for free!
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Old 03-08-2010, 11:49 AM
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Quote:
Originally Posted by FordNutz View Post
Yes you need special tools. Buy the parts, bring it over and I will show you for free!
where are you located? I'd like to find a good trans builder around me that would help me out... I know we discussed transmission a little before when i did the BTS valve body
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Old 03-15-2010, 07:22 PM
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I just finished rebuilding mine today! If you have mech skills you can do it! I didn't buy any tools but i did have to build a couple. its really not that hard but there is alot of parts, mostly thrust bearings which have to be installed the correct way or they won't last. also don't forget any snap rings! I forgot to put the low/reverse snap ring in and I got the trans all the way in and had no reverse! i was steaming mad but it was my fault. also you have to check the gap between the last plates in all of the clutches and make sure the proper gap is there. I used the manual from atsg it is almost priceless. I saved hundreds and i now have a heavy duty trans. I used the transgo tugger kit in mine, you have to drill new holes in your fluid circuits but it really was not that hard and they provide excellent pictures and diagrams. WIT has all the parts you will need and they have a parts breakdown for the 4r100 online. im not sure what the website is just type in wit transmissions into google.
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Old 03-15-2010, 07:29 PM
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Yeah I am interested in this as well. Great to hear that some guys out there are doing their own. I'm used to folks rolling right over when it comes to working on a trans, I have done a couple manual trans and motorcycle trans.
So I could do it? Yeah!!

Scot
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Old 03-18-2010, 11:58 AM
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Quote:
Originally Posted by bjg8599 View Post
I just finished rebuilding mine today! If you have mech skills you can do it! I didn't buy any tools but i did have to build a couple. its really not that hard but there is alot of parts, mostly thrust bearings which have to be installed the correct way or they won't last. also don't forget any snap rings! I forgot to put the low/reverse snap ring in and I got the trans all the way in and had no reverse! i was steaming mad but it was my fault. also you have to check the gap between the last plates in all of the clutches and make sure the proper gap is there. I used the manual from atsg it is almost priceless. I saved hundreds and i now have a heavy duty trans. I used the transgo tugger kit in mine, you have to drill new holes in your fluid circuits but it really was not that hard and they provide excellent pictures and diagrams. WIT has all the parts you will need and they have a parts breakdown for the 4r100 online. im not sure what the website is just type in wit transmissions into google.


How much time and money did you have into the DIY rebuild?
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Old 03-18-2010, 02:39 PM
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Quote:
Originally Posted by popcan33 View Post
How much time and money did you have into the DIY rebuild?
I'd like to know too! I want to know what it would cost me to build my transmission up pretty good in my shop. And what kind of special tools would be needed?
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Old 03-18-2010, 05:27 PM
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Originally Posted by popcan33 View Post
How much time and money did you have into the DIY rebuild?
in the end i had just over 1200 in total. i live near nashville tn and went to the wit transmission center located off of briley parkway. it took me half a day to pull transmission and whole day to tear apart and rebuild. you probably can do it faster but i had to build one tool to lower direct clutch into housing. just follow the manual and you will be fine. after you are finished you will laugh about how none complicated it was.
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Old 03-18-2010, 05:43 PM
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Get a manual and do it your self. Have had my tranny out well lets just say i dont have enough fingers. Worth the money and if you got the time.
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Old 03-18-2010, 09:07 PM
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Quote:
Originally Posted by bjg8599 View Post
in the end i had just over 1200 in total. i live near nashville tn and went to the wit transmission center located off of briley parkway. it took me half a day to pull transmission and whole day to tear apart and rebuild. you probably can do it faster but i had to build one tool to lower direct clutch into housing. just follow the manual and you will be fine. after you are finished you will laugh about how none complicated it was.
Does the manula have step by step instructions?
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