3.0 swap to 4.0 swap have a few questions

[kiragyu]

so i swapped in a 06 ranger 4.0 into a 98 mazda b3000 well the speedo doesnt work because its connected to the output shaft speed sensor on the tranny. well i know i should swap in a new gem module to make everything work right but i was wondering if i could just splice my old speed sensor into the output shaft speed sensor wires and have the speedo work till i get everything figured out. please help asap

 

[Transmarobirdeater]

I dont know if I will have that problem or not. The 04 4.0 Im working with has both.I think the sensor on the tranny reads when Im in 4 low. Then it reads the VSS sensor when in 2wd or 4hi I thinks thats how it works. I dont have a gem. I think if I were in your situation I would just try it. I dont think its going to damage anything, then again Im no expert. Good Luck!