gm 1/2 ton ifs gear ratio

[skylark]

Same story, pull the cover and either look for the stamping on the ring gear or start counting teeth and doing math.

 

[jrmbrown93]

Ok say I've got it out nothing hooked and I mark a starting point on the yoke and cv flange could I tell what gearing it is by that

 

[98_k1500]

If the actuator is engaged, yes, you could hold one flange perfectly still and rotate the pinion. Either take the actuator out, plug it to the truck, select 4x4, then unplug it, or drop a socket in the hole and reinstall the actuator to engage the differential. The ratio you come up with this way will be 1/2 of your gear ratio.

 

[Jrgunn5150]

I'm not talking bout the rear diff

In theory they are the same lol. If they aren't, one shift into 4x4 will tell you lmao

 

[thz71]

In theory they are the same lol. If they aren't, one shift into 4x4 will tell you lmao

It's not in the truck

 

[Jrgunn5150]

It's not in the truck

Ah, it all makes sense now lmao... 14 hour days are catching up to me.

Yes you can turn the yoke and count CV shaft turns

 

[Wagonbacker9]

counting turns on a front diff can be complicated. Easiest as has been said is to just crack it open and look at the ring gear. Good excuse to change the fluid if you're using it anyway.