side yoke play
Thread Starter
Drifting
Joined: Sep 2004
Posts: 1,532
Likes: 4
From: Fairview Heights Illinois, near Saint Louis MO, STL C3 Shark
side yoke play
How much/or how little - should the side yokes on the differential move in and out? Driver's side moves about 1/16 - the passenger side moves in/out about 1/8-3/16 (ish)
Melting Slicks
Joined: May 2002
Posts: 2,717
Likes: 121
From: Sulphur LA
St. Jude Donor '05-'06,'11,'13-'14,'16,'18,'19,'24, '25
The least the better,
over around 1/8" or so you need to start thinking about repairs,
there are plenty of C3's out there with more play than yours still on the road,
the end of the stub shaft wears until the retaining clip falls off in the diff and that could possibly do some damage. If the stub shafts mushroom to severely than it will be a trying job to get them out.
Neal
over around 1/8" or so you need to start thinking about repairs,
there are plenty of C3's out there with more play than yours still on the road,
the end of the stub shaft wears until the retaining clip falls off in the diff and that could possibly do some damage. If the stub shafts mushroom to severely than it will be a trying job to get them out.
Neal
Burning Brakes
Joined: Mar 2011
Posts: 969
Likes: 1
From: NJ
I had around a 1/8 play when car is off the ground and I pull/push the wheel at 12 and 6.
Now that the wheels and halfshafts are off, I cant pull the side yoke at all by hand.....but Im guessing thats just because I dont have enough leverage. Nevertheless I am getting the diff rebuilt.
Now that the wheels and halfshafts are off, I cant pull the side yoke at all by hand.....but Im guessing thats just because I dont have enough leverage. Nevertheless I am getting the diff rebuilt.
Melting Slicks
Joined: Oct 2002
Posts: 2,317
Likes: 111
From: St Louis MO
Ninety nine percent of the time the side yokes are inwards loaded, and that is why they wear against the center spider gear shaft. With the half-shafts removed, you can push and pull the side yokes in and out - this is the free play we've been discussing.
If the car is off the ground with tires, halfshafts and all, pushing and pulling on the tire at 6 and 12 o'clock will have magnified movement because of the leverage... Still, the side YOKE should not move in and out any farther than we've been discussing (it IS harder to measure this way!)
If the car is off the ground with tires, halfshafts and all, pushing and pulling on the tire at 6 and 12 o'clock will have magnified movement because of the leverage... Still, the side YOKE should not move in and out any farther than we've been discussing (it IS harder to measure this way!)
Burning Brakes
Joined: Mar 2011
Posts: 969
Likes: 1
From: NJ
Ninety nine percent of the time the side yokes are inwards loaded, and that is why they wear against the center spider gear shaft. With the half-shafts removed, you can push and pull the side yokes in and out - this is the free play we've been discussing.
If the car is off the ground with tires, halfshafts and all, pushing and pulling on the tire at 6 and 12 o'clock will have magnified movement because of the leverage... Still, the side YOKE should not move in and out any farther than we've been discussing (it IS harder to measure this way!)
If the car is off the ground with tires, halfshafts and all, pushing and pulling on the tire at 6 and 12 o'clock will have magnified movement because of the leverage... Still, the side YOKE should not move in and out any farther than we've been discussing (it IS harder to measure this way!)
No wheels and no halfshafts, in/out movement by hand is around 1/16th
With wheel on, pushing/pulling on 12 and 6, it moves out of the diff around 1/8th to 2/8ths. - Would you then conclude that I should look into it?
Melting Slicks
Joined: Oct 2002
Posts: 2,317
Likes: 111
From: St Louis MO
The side yokes are limited in their outward movement by the circular clips internal to the diff. If you can pull them out "2/8" inch but only 1/16" with the half shafts disconnected, something is amiss. I'd fix it before anything worse happens.
Pull the diff, remove the back cover and look for wear at the end of the side yokes - they're probably very worn. Inspect, and rebuild as necessary.
Pull the diff, remove the back cover and look for wear at the end of the side yokes - they're probably very worn. Inspect, and rebuild as necessary.
Thread Starter
Drifting
Joined: Sep 2004
Posts: 1,532
Likes: 4
From: Fairview Heights Illinois, near Saint Louis MO, STL C3 Shark
got enought stuff out of the way now to measure - and the yokes are good. While I was at it - determined that one of the trailing arm bushings - (that I installed about a thousand miles ago) is bad. I really think I installed it incorrectly (didn't use the tool) so it's my own darn fault 
. Ordered a replacement already and it showed up at the front door yesterday.
. Ordered a replacement already and it showed up at the front door yesterday.
