742 3.23 installed but won’t drive either side?

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xLURKxDOGx

xLURKxDOGx

"An angel fat, at satan's feast"
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So, this is strange situation I’ve never ran into and can’t figure what would make it so you can turn either axle and it won’t drive the driveshaft, like no resistance at all? I pulled this from the junkyard as well as many others in the past. This one seamed fine up to this point. Would dropping at or moving it around cause some internal issues? I just spent all day get this thing in and I’m stumped. Any suggestions would be greatly appreciated.

Jake
 
Because it is a open differential. While in the air when you turn one wheel the opposite side will turn opposite direction and your drive shaft won't turn.Drop the car on the ground and drive it.
 
SGBARRACUDA said:
Because it is a open differential. While in the air when you turn one wheel the opposite side will turn opposite direction and your drive shaft won't turn.Drop the car on the ground and drive it.
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I put it in drive and can stop both tires while in the air, is that normal? No resistance at all. Thanks for your help Roy.

Jake
 
So whst you are saying is that with both rear wheels off the ground. You can start the engine, put trans into gear, and both rear wheels will spin (same direction? Opisite directions? )

With above happening you can grab one wheel and (both wheels stop rotating? One wheel stops but the other speeds up?)

Lastly could it be that you have an automatic trans and stopping a wheel is like sitting at a stoplight and the torque converter is doing its job?
 
It's because the differential is not turning, only the spider gears are turning. Block one wheel then try turning, this will force the diff to rotate.
 
69FBCuda said:
It's because the differential is not turning, only the spider gears are turning. Block one wheel then try turning, this will force the diff to rotate.
Click to expand...
Thanks, answered my question.
 
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