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Old 12-20-2009, 10:59 PM
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What tools should I have for a 700r4 rebuild?

Hey guys,
I'm trying to prepare myself for my first automatic transmission rebuild. I have the ATSG manual, and im reading up on the internet about 700r4 rebuilds. I'm also Looking through the box of parts here to get familiar with all the parts. I'm also trying to figure out what tools I really would like to buy, and which ones I can do without for a one time rebuild operation.

I was thinking The spring compressor that wedges into the case for the rear most clutch pack seems tough to live without. I think I'll buy that. Any others that are necessary?

How about busing drivers? I want to replace all the case bushings/bearings. Would you think that I can reach the new bushings and drive them in without damage using normal tools and an assortment of wood/pipe/sockets. to fit the new bushings?

I have decent snap ring pliers, and a good assortment of normal mechanic tools.
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Old 01-19-2010, 10:28 PM
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i think your on the right track just make sure you have two clean work tables, one to tear it apart and one to build it back on after you clean your parts... i watched my buddie do it with basic tools.. and two different pairs of snap ring pliers. just pay close attention how it comes apart and maybe even take pics as you do it so you can go back to the pics and see if its right when your putting it back together
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Old 01-20-2010, 12:00 AM
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Thanks,
I'm most of the way through the rebuild now. And I was able to do most everything with tools I had. I did buy a spring comrpessor that helped with the drums that have a hole in the middle. The forward drum has the input shaft in the middle, so that style compressor didn't work. I also uprated the springs in the piston there, so I really needed a tool. I found that I could use my Drill Press with the arms from the compressor tool for a makeshift compressing tool.

I had to take the pump to the local trans shop to press the old stator out and install the new hardened stator.

Dana at Pro-Built supplied scarf cut rings for the input shaft. So I don't have to do any compressing there either. He says they work great. They are an interesting material that is mostly white but with colored specs in it.

The bushigns are the hardest part. I have driven the old ones out with a punch or drift type tool. And I tap the new ones in with a socket or whatever I can find to be gentle to the edge. I have been checking them all on their shafts as I go, and they all seem perfectly round and unscarred. I bought a harbor freight bearing driving tool that works for the smaller ones, but it only goes to 1-1/4" or so.

I spent about $60 in new tools, and thats the spring compressor, bigger snap ring pliers, and the bushing tool. Thats good enough for a once in a great while home rebuild.
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Old 01-20-2010, 05:45 AM
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That's intersting. I've rebuilt some standard transmissions in the past but never an automatic. Always wanted to give it a try. You may have me convinced. Post back how it worked and convince to give it a try. I've got access to few that need rebuilding.
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Old 01-20-2010, 09:49 AM
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their kinda a different animal... its like a more complicated motorcycle clutch, you have a plate and a clutch and a plate and a clutch and so on so forth, for every gear, just pay close attention on how it comes apart and have the rebuild kit already their. it helps to lay everything out in order as it comes out and make sure you lay everything out in the same direction and that you dond flip something as you set it down or as you pick it up to re install it
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