Transmission woes?

[petethepug]

Time to add a 10 speed?

2007.5-2013 GM Truck - Powertrain Swap Solutions

www.powertrainswapsolutions.com

 

[Marky Dissod]

If you manage a 10L80 conversion, 3.42 is PLENTY of axle gear!

 

[donjetman]

Where is the best place to send the fluid to?

blackstone-labs.com is the cheapest but is taking about 5 weeks to get results these days
jglubricantservices.com is my favorite for atf. Here's why and more:
https://www.tahoeyukonforum.com/threads/used-atf-lab-results.118039/

 

[donjetman]

I’m willing to do either a torque converter or a trans on this truck.

Torque Converters: https://cvcconverters.com/
or
https://www.circledspecialties.com/
or

https://gopnh.com/

I went with the gopnh.com # P4646, still going strong 70k miles & 6 yrs later.
https://www.tahoeyukonforum.com/thr...7-yukon-denali-6-2.108334/page-3#post-1293118

 

[donjetman]

I haven’t dropped the pan yet as the filter & gasket are on order. Weird can’t just go to NAPA n pick one up.

6L80 Trans filter = GM# 24236933
Here's a thread I did when I did a tranny filter change:
https://www.tahoeyukonforum.com/threads/6l80-filter-change.108378/

 

[Foggy]

It does have the 3.42. It is the plan to get a larger cooler on this thing. I generally see temps steady 190-200 in ambient temps above 60 degrees. This is According to the DIC. We all know that it can be inaccurate

The trans temp DIC reading is actually very accurate..
Your Torque Conv is generally the culprit/weakest link.
When you get ready to do your overhaul/rebuild make sure you
have a good aftermarket HD TC in hand or your local rebuilder
prob has a very good source.
After all work is done and trans has been running normally for a couple hundered
miles, then get it programmed so you won't have to do it again.
Anyone with hptuners or blackbear can take care of you.
The shift timing and torque converter settings need to be changed to get
good life out of your new trans & conv