Do i have to drain the oil out the tranny before pulling out the old seal or is there is another way? and if i do, how do you get the oil back inside the small plug. thanks

 

You simply replace the axles

They have grease inside them, but dont they dont run off the tranny fluid

If you lose some fluid during the axle install, simply unscrew the top little plug out and fill with trans fluid till it starts leaking out and your good

 

i actually have to pop the inbut shaft out the tranny in order to get the seal out,your telling me that there bearely no oil thats going to come out when i pull the input shaft out?

 

Oh its a seal sirry i thought it was just a leaky axle. Didnt read that right

Umm yeah you may leak some fluid still id fill it as said before though

And i dont think it will leak much iirc

 

what do you use to get the oil back inside?

 

a long funnel, car as even as possible on jack stands or a hoist. take the tranny plug out, and fill till fluid trickels out. gotta do it when warm.

 

thank you,another question,do you guys recommend after market seals or oem?

 

pretty sure you have to drain about half the fluid or it will come out of the trans when you remove the axle. I'd go ahead and just do a full fluid change. How long has it been since you changed the fluid anyways? you use a fluid transfer pump. they have them at autozone or oreily. Hold onto it, but I'd only use it for that application from now on. I have several of them I use for different types of fluid. I'd go ahead and do both seals.

OEM/Fluid transfer pump (25713) | Fluid Pump | AutoZone.com

 

what about the seals,aftermarket or oem?

 

You will loose just a small amount of fluid when you take out the old seal. Get the oem seal kit and use all the parts.

 

what do you guyz use to tap the seal inside where its suposed to go,because i dont have a 45 mm socket...

 

This sounds like maybe you should get some help with this job, if you don't know how to put fluid in the trans or install the seal, odds are you won't have a good time with this job.

Lookup the procedure for draining and filling the trans, there are two plugs on the trans, the lower is a drain and the upper is a fill. Make sure you can remove the upper before you pull the lower one.

You can try without draining it, if the car is fairly level very little fluid will come out of the axle openings.

Clean the area around the seal very well before removing, do not damage the bores they sit in on the trans. Clean the area on the axle where the seal sits, I like to polish them lightly to remove any glazing and wear patterns, apply a little axle grease and install straight so you don't damage the new seals.

As far as installing the new seals, any round object about the size of the outside of the seal will work, you want to drive it in from the metal support ring on the outside without hitting the rubber part inside. You can use a flat piece of metal if needed and you can get into the space around it, I haven't personally changed cobalt axle seals so I don't recall if that will work great on this platform but it has on others for me.

Be very clean and thorough, consider getting a service manual for your car (the cheapo ones from auto parts stores cover simple repairs like this) to help you with the basics.

 

Also, for fluid filling on the F35 I use the diff fluid bottle with a rubber hose attached to the little tapered top, hold the bottle up above the fill plug level in the wheel well and squeeze. Make sure you have a pan under the car to catch the excess fluid when it reaches the full level. If you have the transfer pump it makes it easier but it's still the same idea and still messy.