Bell Housing Bolts - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > Engine Tunes/Mods

Engine Tunes/Mods Performance Engine Tuning/Engine Modifications

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  #1  
Old 08-23-2008, 08:36 PM
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scoats scoats is offline
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2003 Chevy TrailBlazer LT
Dark Gray Metallic 4.2L I6 4X4
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Bell Housing Bolts

does anybody know of a trick or tip to get the upper bellhousing bolts out theres no room
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  #2  
Old 08-23-2008, 10:26 PM
WOOLUF1952 WOOLUF1952 is offline
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2003 GMC Envoy SLT
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Are you removing the motor or trans? If your removing the trans; Disconnect the exhaust pipe, Put a support under the back of the trans, Remove the trans support, Lower the back of the trans. You should be able to get to the top bolts. Good luck, those things a heavy.
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  #3  
Old 08-24-2008, 12:39 AM
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im pulling the motor
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  #4  
Old 09-05-2008, 04:12 PM
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Support the transfer case if applicable, or the back end of the transmission, disconnecting the exhaust and removing the rear drive axle, you can lower the jack down quite a bit. It gives plenty of room to get at the bolts, provided you have a lot extensions and a swivel. You will also want to have your cooling fan removed and anything else that would get in the way. It took me about 5 minutes to get all the bolts out. Note, leave the engine mounts attached and they will allow things to pivot perfectly. I later reattached the tranny crossmember and moved the jack to the front to support it as I removed the engine.

Good luck. It was the easiest engine swap I've ever done. It took me less than two days from starting it until I was driving it away (including at least 1 hour diagnosing a bad MAP sensor on the new (barely used) engine).
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  #5  
Old 10-04-2008, 09:52 AM
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glfredrick glfredrick is offline
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I know that this thread has probably already been resolved, but for those doing future searches for this topic, find one of these Snap On locking extensions.

http://buy1.snapon.com/catalog/item....re&dir=catalog

They are 1/2" drive on the ratchet wrench end and 3/8" drive on the socket end. The socket locks onto the extension so it doesn't fall off. The tool will easily reach from the rear of the transmission to the bell housing bolts.

I wouldn't be without this tool! It is a lifesaver for doing any sort of transmission work.
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  #6  
Old 10-05-2008, 05:22 PM
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Robert1101 Robert1101 is offline
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I picked up a 1/4 drive, very small, air rachet for just this job and it works great.
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  #7  
Old 02-21-2014, 02:50 PM
Rich K Rich K is offline
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2004 Buick Rainier
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I'm currently replacing the transmission in my 2004 Buick Rainier. Once the transfer case was off, and the transmission crossmember and mount were removed (with a jack supporting the transmission), I used an extra long Craftsman 3/8" drive extension that reached the full length of the transmission housing to get the bolts out.

Fun part, of course, will be getting the rebuilt tranny IN...
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  #8  
Old 04-12-2014, 12:08 AM
cconzen cconzen is offline
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2006 Chevy TrailBlazer LT EXT
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ratcheting wrenches. stubby

For bell housing bolts.
Or a long extention with swivel socks 15mm
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