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First off, I did the best I could with pictures since my hands were dirty. If there is not a picture it is because it is explained in the instructions pretty good. If you use a lift and work under your truck make sure your ... JOIN NOW TO REMOVE TRACER

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Old 04-13-2008, 10:14 PM
GMC2500HD's Avatar
Diesel Fan


Default Transgo Jr Install Step By Step... Pics Included, Best I Could Do...

First off, I did the best I could with pictures since my hands were dirty. If there is not a picture it is because it is explained in the instructions pretty good. If you use a lift and work under your truck make sure your truck is steady and secure. If you work on the ground I suggest those drive up ramps to raise the front of the truck and then block the back wheels.

1. You will need at least a 15 qt drain pain. Place under the truck and remove the drain plug in the allison pan. Let drain until dripping. This will ensure that most of the fluid is out. Once that is done replace plug in pan.

2. Remove the bolts from the pans outer edge and slowly drop the pan down and remove the internal filter. Careful as more fluid will come out once filter is removed.

3. Begin the process of removing the plugs from the solenoids and the pressure switch and get them out of the way.

4. Begin to remove the outer bolts from the VB. See pictures below for more in depth look.

5. Once the VB is loose then turn it towards the passenger side and slowly tilt it down to remove it, this will clear the pin from the shifter. Watch out as more fluid will come out.

6. Place VB on bench, I covered mine with a trash bag, worked great.

7. Remove all bolts from VB (see pics below) and take the VB apart and remove the sparator plate.

8. Drill in the proper location, following instructions. Remove any snares from the VB on the under side from drilling. See pic below.

9. Follow the instructions to remove the plate and solenoids, and tube to get to the trims valves. Remove the old trim valves and follow instruction in kit to install new ones.

10. See pictures below. Once trim valves are in and solenoids are back together then install the plate to hold them in, make sure the accumulator springs are back in as well before plate is installed.

11. Place separator plate back on VB and make sure that everything lines up and is clean of debris or metal shavings.

12. Place top of VB back on the lower half and begin to install the bolts. See picture for locations.

13. Once VB is all back together and pressure switch and tube are back in then you can tigheten things up and get ready for install.

14. Replace the VB back in trans the same way you took it out making sure that the pin front side goes back into the shifter.

15. Make sure you plug everything back in and then install all remaning bolts. Tighten and re-check everything, twice...

16. Re-install the internal filter and then the pan, tighten everything up, re-check bolts, not sure on trq spec. Just make sure they are tight.

17. Pour in 12-14 qts and check with truck running in park. You can re-use the transmission fluid that you catch if you want or you can do what I did. I called Mike L. and he told me that Mobil 1 Synthetic was the way to go so I bought 16 quarts of it and put that in. I am going to wait a little while put some miles on it and then drain more out and put more synthetic in, should all mix well and will be 95-98% all synthetic at that time. Will not hurt to mix them if you want to use new stuff with what is still in the trans and converter.

18. Drive till warm, park and check again, add if needed.

I know that pics are not in order but you can get the idea and as you tear it apart you will see by each picture what I am talking about.
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Old 04-13-2008, 10:15 PM
GMC2500HD's Avatar
Diesel Fan



Here are more pictures...
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Old 04-13-2008, 10:16 PM
GMC2500HD's Avatar
Diesel Fan



And the last picture...

I hope this will help with those of you that have questions on the Trans-go Jr install process.
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Old 04-13-2008, 11:16 PM
Whit's Avatar
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Status: Retired

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good job stud...........thanks

Whit's Sig:"Enjoy the day. Take what you want and leave the rest...."
Old 04-13-2008, 11:47 PM



Thanks Trey.

TCU Fan's Sig:Our opinions, once meant something, now not so much. Think what you want, but the reason for some change is different then you may realize.
Old 04-14-2008, 11:05 PM
GMC2500HD's Avatar
Diesel Fan



No problem man... Glad I could help..

If you guys have any questions just let me know...
Old 04-14-2008, 11:10 PM
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looks like it was hell

94cummins12v's Sig:sold 96 f350 CCLB, p-pumped 12v cummins,506hp-1089tq
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Old 04-15-2008, 07:46 AM
GMC2500HD's Avatar
Diesel Fan



It was interesting to tear into but for the most part it was not bad at all. Once I got in there and got my hands dirty it seemed to go pretty well.
Old 04-15-2008, 09:09 AM
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Did you notice any difference in how the truck drove? My understanding was that it should feel stock, but be able to handle more power.

Nice write-up. I have been thinking of doing this to mine. This will be a big help.

LeadfootDuramax's Sig:2006 GMC 2500 HD Duramax/Allison 265 GoodYear Wrangler Silent Armor, Westin Wide Oval Steps and the Red Light Runner Mod
Old 04-15-2008, 11:10 AM
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We put one in Gmclbz's truck a couple of weeks ago and it was a piece of cake just gotta take your time and be clean follow the instructions and tq specs and it will be an easy job, i haven't drove it yet but being a passenger and from what he tells me the shifts are much firmer than stock. DD
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