What diffs can i use?

[Usguy]

Hello All..!!!!!

I have a 94 k5 and i just lunched the rear-end, I saw a old suburban at the junkyard that looked like it had the same ten bolt rear end. But I didnt know if they where interchangeable can anyone help me clarify if there is any differances, I have the 3.73 gears and I want to take the ring and pinion gears out of my truck and replace them with the ones from the suburban but still use the same axles, is this possible? Thanks!!!!!!!!!!!!!!!!

 

[MattK]

Hello All..!!!!!

I have a 94 k5 and i just lunched the rear-end, I saw a old suburban at the junkyard that looked like it had the same ten bolt rear end. But I didnt know if they where interchangeable can anyone help me clarify if there is any differances, I have the 3.73 gears and I want to take the ring and pinion gears out of my truck and replace them with the ones from the suburban but still use the same axles, is this possible? Thanks!!!!!!!!!!!!!!!!

94 k5? you got a solid axle under the front or is it the independent front suspension?

it would be easier to swap the entire axle under your truck if you ask me. id measure its width to ensure its the same, but swappin that axle shouldn't be a huge deal.

 

[sled_dog]

sounds like you have an IFS Blazer(not considered a K5). If that is the case, no the rear end out of an old(solid front axle) Suburban is not the same. The spring pad spacing is way different. If you can weld maybe you could move the spring pads and probably have to move shock mounts too.

What happened to your rear that you need to replace it? If you really "lunched" it, then what makes you think the gears are any good? Seen more than one ten bolt chew up a set of gears like they were nothing.

 

[Usguy]

I am trying to use the gears from the old suburban in the pumikin on my blazers diff should i just buy new gears?

 

[sled_dog]

I'd buy new gears but that can be swapped.

 

[Usguy]

R U sure the suburban's diff doesn't have a differant amount of splines on the axle shaft ?

 

[sled_dog]

well yes it most likely does, but you asked about using the gears not the carrier and spider gears.

Grenade your carrier as well? Could take the spider gears from your present 10 bolt and install them in the carrier from the suburban.

 

[Usguy]

you really think so?