Build Tremec 4050/Atlas Industries adapter/Split case/6.0L Vortec in 60 series

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Joined
Jan 22, 2007
Threads
223
Messages
10,728
Location
Chesnee, SC
Sugar is getting a 5 speed transplant. Out with the NV4500 in with the Tremec 4050
Axis Industries adapter. No provision for a T-case shifter so made up a mount using the plate and pin provided with the NV4500 adapter. If I was doing this swap from scratch I'd just order the twin stick mount and pin from AA when ordering the twin sticks.

No glitches in the installation. Bolts right up to the same bell housing and uses same clutch and pressure plate set up as the NV4500. I used a kit from AA with all the pieces needed to do the NV4500 swap, so order this with the twin sticks and the pin and mount. It was almost too easy, still waiting for the other shoe to drop :) Drive shafts will need to be made to the correct length .

The shifter that came with the trans is more of a car style and it hits the dash in N
No off the shelf shifters like what the customer was looking for so I made the NV4500 shifter work.

I think that this is a great alternative to finding a used NV4500, rebuilding it and hoping it does not make a lot of noise in 5th gear. It drives well and does not make noise in 5th gear. Of course now I am listening for every sound :)

Tremec 4050 and Axis Industries adapter. 6.0L Vortec motor. This motor starts to growl around 3200 RPM. I love this particular truck, my favorite so far, it should be a bit quieter now :)

262340153_5023941280970056_7249399516007617140_n.jpg

262501823_5023941390970045_3742306392505957182_n.jpg

262553312_5023941537636697_6542758706065681159_n.jpg
262503334_5023941664303351_4753420656402437862_n.jpg

269598591_5079409695423214_2342403658756855423_n.jpg

269315566_5079409785423205_6070172996126156874_n.jpg

268466049_5079409878756529_6614670716933539128_n.jpg
 
I just saw this on your Instagram was wondering what the hell was up with shifter at the transmission because it doesn't look like a nv4500 where the shifter attaches to the transmission. Because its not a nv4500 haha
 
I have a Gen4 6.2 (L92) I'm in the process of prepping to swap in, and am considering a TR4050 instead of my currently installed H55.

I *think* this is the parts combo I would need - any comments or corrections would be welcome

EngineGM L92$ xx.xx
ClutchLuk / AA 712500M. partsgeek$
BellhousingAA 712576. summit$ 432.62
TransTR 4050$ 3,794.72
Xfer AdaptorAA 50-0302
XferToy Split case (OEM)

Quickdraw alternative: Transmission & Adapter – GM LS to Tremec TR4050 5 speed 4×4 - https://quickdrawbrand.com/shop-all/transmission-adapter-gm-ls-to-tremec-tr4050-5-speed-4-4/

GM clutch kit 15765633 // Flywheel 15765633
 
Last edited:
I have a Gen4 6.2 (L92) I'm in the process of prepping to swap in, and am considering a TR4050 instead of my currently installed H55.

I *think* this is the parts combo I would need - any comments or corrections would be welcome

EngineGM L92$ xx.xx
ClutchLuk / AA 712500M$ 740.00
BellhousingAA 712576$ 432.62
TransTR 4050$ 3,794.72
Xfer AdaptorAA 50-0302$ 548.10
XferToy Split case (OEM)$ xx.xx

If you do it go with the OEM GM NV4500 bellhousing, stock flywheel (NFW1050) and regular clutch kit, with GM internal slave. You’ll want my 3/4” Clutch master kit to go with it as well.
Personally having done many now with H55f and several with NV4500 and mine with the TR4050, I’d probably go with the H55f just for ease of install since it’s already setup.
 
If you do it go with the OEM GM NV4500 bellhousing, stock flywheel (NFW1050) and regular clutch kit, with GM internal slave. You’ll want my 3/4” Clutch master kit to go with it as well.
Personally having done many now with H55f and several with NV4500 and mine with the TR4050, I’d probably go with the H55f just for ease of install since it’s already setup.
Appreciate the response. I mainly would like the better gear ratios, and would likely use the h55/3FE combo in another vehicle. Is there much needed for the tunnel clearance? I imagine I’ll need to build another crossmember
 
Pro:
-Complete modern OEM (GM) setup, no hodgepodge of different eras of fork/slave/bellhousings,
-easier pedal effort
-no heat management issue with exhaust since the slave is inside bellhousing
-the 00-06 bellhousing is the strongest/best

Con:
-Have to drop transmission if you need to change slave (use a OE slave and this is not a problem, they last just as long as any other hydraulic part)
-kinda hard to bleed
 
Back
Top Bottom