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01 Blazer Tranny Rebuild 1st Time Rebuild

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Old May 2, 2026 | 01:20 AM
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Default 01 Blazer Tranny Rebuild 1st Time Rebuild

Let me start off by saying this is a post asking for help in planning a first time tranny rebuild as far as parts & tool list. Now that's out of the way here's the facts. I have a 2001 Chevrolet Blazer 4x4 w/ automatic transmission that needs full rebuild. Basically transmission was driven for weeks after instrument cluster started failing, causing all those great shifting issues, and not like around town driving I'm talking daily multiple freeway trips 20+ miles. Needless to say when I drained the fluid not only was it black and burnt the amount of metal shavings that came out was absurd only until I dropped the pan and saw what came out was a 3rd of what was in there. I can also see the wire on one of the shift solenoids is broken so I wanted to just kind of get a look at the other electrical components and the other shift solenoid falls off as soon as my fingers touch it bolt still holding what's left of it to the valve body. I stopped there because I know it needs a full rebuild. I don't have the money to have a shop do it but I'm a self taught backyard mechanic but I have never rebuilt a transmission. After doing some research and watching videos I'm confident I can get it done however I'm just worried about what all parts and tools I will need. I'm not looking for a full-on list like with what brands and part numbers just a generic list of parts and tools I will need. If anyone is willing to help me out with that I would be so grateful honestly I'm even willing to pay you for your time if I have too. Also based on what happened to the transmission is there anything else I may have to replace or at least give it a checkup to make sure it want damaged also like the transfer case or something? Again any help would be much appreciated.
 
Old May 3, 2026 | 04:20 PM
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From the description you gave, you may as well order a complete rebuild kit. I've never tore a tranny down but did have mine rebuilt about 15 years ago. I told them to throw HD clutch packs, new solenoids, a Transgo, Jr control block and a Beast Sunshield. I used to tow with it for about 10 years after the rebuild and also use off road with no problems since the rebuild. I didn't have any metal shavings, let alone parts of gears. The sunshield was the culprit but I wanted a stronger built tranny over stock. If you plan on keeping it for the long haul you might as well beef up a few items over stock.
 
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