David 4:1 Klune-V - Extreme Underdrive Box - Project Matilda - Advance Adapters

2. Two shifter options are available with the Klune-V. You can get a direct shift lever, or a remote cable-actuated shifter. We tried the direct lever shifter, but found it would end up somewhere under the seat of the truck so we ended up using the cable shifter.
2. Two shifter options are available with the Klune-V. You can get a direct shift lever, o
3. There are three access points on the Klune-V housing identical to the one being pointed at. This gives you three options for shifter mechanism placement to better ensure you'll not have clearance issues with other components under the truck.
3. There are three access points on the Klune-V housing identical to the one being pointed
4. Two covers are given to bolt over the two (of the three) access holes not being used by the shifter.
4. Two covers are given to bolt over the two (of the three) access holes not being used by

5. It was recommended to us to modify our Dana 300 transfer case using Advance Adapters' 32-spline Dana 300 kit. This would allow us to upgrade our input and rear output shaft size to 32 splines.
5. It was recommended to us to modify our Dana 300 transfer case using Advance Adapters' 3
6. The 32-spline input shaft is shown already installed in the transfer case. The original 23-spline input is seen sitting to the right of the transfer case.
6. The 32-spline input shaft is shown already installed in the transfer case. The original
7. Pictured is the Advance Adapters (AA) 32-spline rear output shaft alongside the stock Dana 300 output shaft.
7. Pictured is the Advance Adapters (AA) 32-spline rear output shaft alongside the stock D

8. The AA kit comes with a new tailhousing, rear 32-spline output, and CV yoke to bolt onto the end of the Dana 300 'case. We actually ended up ditching this CV yoke for a round flange to fit our application. The round hole in the side of the tailhousing is for the speedo.
8. The AA kit comes with a new tailhousing, rear 32-spline output, and CV yoke to bolt ont
9. The 32-spline output shaft has been installed in the Dana 300. Note the blue plastic speedo gear that slides onto the shaft. Changing this gear will change the speedometer reading.
9. The 32-spline output shaft has been installed in the Dana 300. Note the blue plastic sp
10. Once the rear output shaft is installed, you can bolt on the new rear AA tailhousing and rear yoke.
10. Once the rear output shaft is installed, you can bolt on the new rear AA tailhousing a

11. With our Dana 300 now accepting a 32-spline input, we were able to test-fit the Dana 300 and the Klune-V together using the intermediate shaft that Klune-V provides.
11. With our Dana 300 now accepting a 32-spline input, we were able to test-fit the Dana 3
12. Once we made sure that we had the right length shaft and the two cases bolt together, we installed the Klune-V's supplementary mounting bracket and spacer ring before bolting on the extreme underdrive box.
12. Once we made sure that we had the right length shaft and the two cases bolt together,

13. With the Klune-V and the Dana 300 bolted together, Jeeps R Us test-fit the package behind the transmission, figuring out how to modify crossmembers and attachment points to make everything kosher.
13. With the Klune-V and the Dana 300 bolted together, Jeeps R Us test-fit the package beh
14. Since the transfer case was moved back a considerable distance, so was the T-case shifter. You can see the unpainted spot (with a temporary tape patch on it) where the shifting lever used to reside. It wasn't ideal to have it so close to the passenger seat, but it was way easier than making custom shifter extensions.
14. Since the transfer case was moved back a considerable distance, so was the T-case shif
15. Here is the finished package with the Klune-V installed and our retrofitted Dana 300 transfer case sitting behind it. You can see the underdrive box sitting directly above the crossmember. You can also see the custom tabs made off the crossmember to support the new package of the Klune-V and the Dana 300. Notice that we had to ditch the CV yoke and go with a round flange to meet up with our rear driveshaft.
15. Here is the finished package with the Klune-V installed and our retrofitted Dana 300 t