Does this look like a 355 sure grip to you.

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Snake

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They drop it off a 530 in the morning last Saturday.He said its a 355 gear and a sure grip,he grab the pinion and booth axles spun the same,I took his word for it,Does it look like a sure grip 355 to you.I am almost ready to thru in the towel.Ihope i get my 550 back.:violent1:
 
Snake it sure looks like a 3:2 something open carrier to me.
 
Looks like maybe 3.23's and that is an open rear, not a suregrip.

If you want to know the ratio for sure, count the teeth on the ring gear, count the teeth on the pinion. Divide the ring # by the pinion #.
 
They ain't No Sure Grip.

I just Realized it is Not a 8 3/4 I didn't notice, Man I am a Dumbass lol.
 

I just called the guy hes says the 8 1/4 are different than the 8 3/4 hes says its a limited slip,than why does booth axels spin the same sure looks like a sure grip,i think i am going to have a hard time with this guy.
 
I just called the guy hes says the 8 1/4 are different than the 8 3/4 hes says its a limited slip,than why does booth axels spin the same sure looks like a sure grip,i think i am going to have a hard time with this guy.

Check and see if the spider gears turn freely. Could be locked up from one wheel burnouts or tack welded by someone.
 
BS, this is your carrier on top and a limited slip in the bottom pic. (Both 8.25)
Notice the difference in carrier? (cylindrical vs not)

The limited's need that extra room and meat for limited slip clutches behind the axle gears.
 

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The spider gear on the right side looks like it got very hot at some point (note "burnt" look on diff housing). I'll bet it is seized up. That's why both axles turn in the same direction.

Limited slip is limited slip no matter what size the gears are. They do not look like what you have there, an "open" differential (if it's working right).

Chrysler Sure-Grip (L/S) look like this:
312-P4529273.jpg
 
Just an FYI.
I was recently quoted $230 for an 8.25 LS AND all the disc brake hardware out of a Jeep Grand Cherokee by our local pick and pull.

$125 for a axle flange to axle flange open with drum brakes. (no drums)
 
Well I called the guy and he says he will give us back our money he is about 1 1/2 drive to get it so in 2 weeks we are off.Thanks for all the help boys.
 
That's a 3.21 open 8 1/4 rear axle. You got ripped off.
 
I may be wrong here but I was always told to spin one tire and see if the other side spins the same direction, if they spin the same direction it is limited slip and if one spins one direction and the other spins the opposite direction then it is an open differential. When using this method you need to make sure the pinion does not spin by having the drive shaft hooked up or holding it with a bar. Someone correct me if I am wrong.
 
Yeah that's right, but the rear end he is asking about is NOT a limited slip. It's an open diff.

We're not talkin about "how to determine", we're talkin about "what he has".
 
I may be wrong here but I was always told to spin one tire and see if the other side spins the same direction, if they spin the same direction it is limited slip and if one spins one direction and the other spins the opposite direction then it is an open differential. When using this method you need to make sure the pinion does not spin by having the drive shaft hooked up or holding it with a bar. Someone correct me if I am wrong.

Except that if the spider gears are frozen somehow, an "open" differential acts just like a Sure-Grip and you can be fooled.

And, here is the correct way to check:
•Place the vehicle in "Park" if it is has an automatic transmission, or in first gear if it has a manual transmission.
•Jack the vehicle to lift the two tires--on the axle with the differential you are inspecting--off the ground.
•Turn the tire on one of the lifted wheels slowly. Use your hand to turn the tire. If the differential is limited slip, the wheel will be difficult to turn. If the differential is an open differential--also known as a conventional differential--the wheel will turn freely.
-or-
•Place the vehicle in neutral.
•Turn the tire again. The tire should turn more freely on a limited slip. Also, the opposite tire will turn in the same direction. If your vehicle is equipped with an open differential, the wheel on the other side of the axle will turn in the opposite direction.
 
Except that if the spider gears are frozen somehow, an "open" differential acts just like a Sure-Grip and you can be fooled.

And, here is the correct way to check:
•Place the vehicle in "Park" if it is has an automatic transmission, or in first gear if it has a manual transmission.
•Jack the vehicle to lift the two tires--on the axle with the differential you are inspecting--off the ground.
•Turn the tire on one of the lifted wheels slowly. Use your hand to turn the tire. If the differential is limited slip, the wheel will be difficult to turn. If the differential is an open differential--also known as a conventional differential--the wheel will turn freely.
-or-
•Place the vehicle in neutral.
•Turn the tire again. The tire should turn more freely on a limited slip. Also, the opposite tire will turn in the same direction. If your vehicle is equipped with an open differential, the wheel on the other side of the axle will turn in the opposite direction.

Or put it in neutral and lift/turn one rear tire. :D
If the yoke turns it's not an LS or SG
If the tire or yoke neither one turns, it is, (unless there is a spider problem)
 
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