Transmission upgrade

[mattrains]

Hello everyone. I'm looking for some guidance on converting up to the 4l80 overdrive transmission. I currently run the 6.2 and 3l80 3 speed and want better drivability.

I'm thinking about getting a new 4l80 and using the tci control box but wasn't sure if anyone has done this or knows an easier way without using the manual valve body?

 

[NDT]

Search "4L80E" on here to see what CUCV owners have done. "Richingalveston" did a successful upgrade in his M1009. Going the factory option is possible but expensive.

 

[tage]

If you have an overdrive laying around?
If you Google search there's an article with a complete parts list and picture tutorial. It's an expensive upgrade.

 

[Jon0249]

I just did the same thing. Highly recommend US Shift's Quick 4. Also went with an NP241C to get the 2HI option. Putting mine in Park is actually very satisfying. I might have a line on a 4L80e with 6k miles if you're interested. The 4L80e makes a world of difference in drivability. Kicking into OD is great, and even better when the TCC locks. If you want more info, lessons, etc., let me know.