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Write-Up needed! Trunion Upgrade

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Old 09-25-2011, 12:59 AM
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like this write up alot, and thumbs up on the guide! was looking at doing this and feel a little more comfortable attempting it lol

might be a dumb question but this sounds ALOT like doing ujoints with the pressin in and out and all? is it pretty similar in difficulty would u say?
Old 09-25-2011, 06:56 AM
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Just done mine this weekend. Used a bench vice. It took maybe an hour total to punch out the old trunions and reinstall the new ones.
Old 09-25-2011, 07:13 AM
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Originally Posted by ToxicWS6
like this write up alot, and thumbs up on the guide! was looking at doing this and feel a little more comfortable attempting it lol

might be a dumb question but this sounds ALOT like doing ujoints with the pressin in and out and all? is it pretty similar in difficulty would u say?
Yes, it's pretty similar.
Old 09-25-2011, 07:34 AM
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Im missing why a write up was needed. Ive done a ton of these and looking at the Comp instructions, you dont even have to be able to read to install these. They have pictures of every single step????
Old 10-05-2011, 01:54 PM
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doing this upgrade does not require changing pushrod length correct?
Old 10-05-2011, 01:59 PM
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Originally Posted by 99 Blue Bird
doing this upgrade does not require changing pushrod length correct?
Correct ... the mod does not change the position of the rocker arm pivot point on the head.
Old 01-04-2013, 08:34 AM
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zexgx vid

Old 12-30-2013, 09:18 PM
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BENE and Squirts11 even though you guys posted over 3 years ago...thanks for the posts! BENE, your pics are excellent and your process is a true small guy application. Thanks for the post!! Squirts your link refined what BENE's post explained and for that thanks as well!! Another great sticky!
Old 12-31-2013, 06:30 PM
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Originally Posted by baxsom
just done mine this weekend. Used a bench vice. It took maybe an hour total to punch out the old trunions and reinstall the new ones.
x 2 LOL
Old 01-01-2014, 04:58 PM
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did mine today, super easy.
Old 01-01-2014, 09:35 PM
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You can also use a 5" C clamp, it doesn't take a lot of force to press them in.

Plus when using a C clamp you can feel if they are goin in straight vs using a press and smashing them in..

I think a lot of the failures with the trunion upgrade were due to user failure of pressing them in crooked.

My advice is to go slowly and make sure it's completely straight while its sliding in, first sign of it sticking, stop what you are doing and straighten it out..
Old 01-01-2014, 10:18 PM
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I did this a couple weeks ago. Figured it was a good excuse to get that cheap Harbor Freight press to make sure they went in straight. http://www.harborfreight.com/1-ton-a...ress-3552.html
Old 09-17-2014, 07:18 PM
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use a shop vise with sockets
Old 03-25-2015, 08:07 PM
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Just pressed in my new trunions and all went well but I've got 2 that's are still kind of rough feeling, and don't rotate near as easy as the rest. I pressed them out and re did it 3 or 4 times and it just never really got better. Anyone ever had this issue?
Old 03-26-2015, 12:15 PM
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I just did mine a couple weekends ago. I found this video and seems to have given me the most help so far. I don't have access to a press, but most people have access to sockets and a vise-- if you are in the same boat as me this is very helpful.

Old 03-26-2015, 12:16 PM
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I was expecting it to be a lot harder but ended up being way less than I was anticipating.
Old 03-26-2015, 02:25 PM
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i was prepared to drop the $300+ to buy them already installed on the rockers but this appears to be a lot easier then i thought. definitely something i can do myself. thanks for the write up.
Old 04-17-2015, 08:00 AM
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the Gearheadforlife videos area always very helpful.



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