Hope Sharps puts this into the DIY section as I cannot access my posts in there anymore.

Question: How did you compress that 800 lbs spring, forget the name of the unit? Please give good detail.

 

I am in the process of doing the Overdrive unit, I am going to order a 12 ton press to take care of the job. There will be plenty of good details once i am though...

 

I want the dude in the video to build my next tranny. I went on to watch some of his other video's, that guy knows his transmissions.

 

I agree, Hiram is a excellent builder... His shop is in Texas IIRC...

 

Yeah, Houston Texas I saw on his profile. You can tell by how easy and simple he makes it look that he knows these well enough to do a damn good rebuild job in his sleep. Gives lots of info too. Hows your rebuild going? Going along fairly well or are some real challenges popping up?

 

Well, the main case is rebuilt and on the jack waiting for me to finish putting it up. With the high temp the last 3-4 days being 94F+ and a heat index of over 105F there is no chance i am gonna try to get out there and do it... i tried the other day, after 25 mins i could hardly breath and ended up getting sick when i did come in... there calling for heavy storms Saturday evening as a cold front comes though so it looks like it will be able to get at it again come Sunday.

After the main case is back up i can put most of the other things back together. Then i have to wait for a press and some parts for the Overdrive unit to come in so i can finish rebuilding the rest. If all works out i should have everything squared away the first week in August.

 

I've been rebuilding my front end in my truck for the last week and a half for the same reason, just to damn hot and humidity dosen't help.

When I go out now I place a tunnel fan I have and that helps with the heat, but you have to stay in the moving air and thats hard to do. I was thinking about buying a mister for it but I'd rather spend the money on cold beer.....

 

I think my next project is going to be rebuilding my trucks front end as well....

I managed to get a few hours this morning to work on it as there was a nice breeze flowing that went though the garage nice. I got the main case bolted back to the engine and the converter bolted to the flex plate... All that's left for that section is to hook up all the wires, lines and linkage.

Then i have to wait for parts to come in

 

Overdrive Unit



So i started to tear down the overdrive unit while i waited for parts. The first step is to remove the 3 snap rings just inside the case. Once you do that it will allow you access to remove the first set of clutch packs. Here is what mine looked like...



Once you have the first set of clutch packs removed you can now remove the internals out of the case as a hole. You do this by flipping the unit over and removing the inspection cover on the back tail. Use a set of pliers to spread the snap ring and it should fall right out.



When you are done you should have this...



The next step is to compress the overdrive hub and remove the snap ring between the hub and the overdrive ring gear. To do this you need a press. DO NOT ATTEMPT THIS WITHOUT A PRESS! There is a spring, some call it a 400lbs others a 600lbs spring.. it can and has killed people after getting hit with it while not using a press... use the proper tools!

Here is what mine looks like... As you may be able to see my snap ring is shattered in several places. This is a common issue for failure on these units.



At this point i am waiting on my press to arrive so stay tuned, more to come.....

 

Nice work! It still never ceases to amaze me how complex automatic transmissions are.