Sierra diff
#1
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Trying to figure out my sierra diff. I've worked out its 7.5 in and a 3.92 but can't figure the little plate to see if its an LSD or not. Don't really want to take cover off.
When I have the car jacked up so both rear wheels are off the ground. If I turn one of the wheels the other one turns as well.
What does that indicate?
When I have the car jacked up so both rear wheels are off the ground. If I turn one of the wheels the other one turns as well.
What does that indicate?
#5
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yes, with the car in gear not running
if it is an LSD the wheel will be very tight to turn, if you can turn it!
same check with a diff on the floor,
hold one drive flange so it wont turn, turn the nose drive and if you struggle to hold the drive flange still, its LSD, if the opposite output flange turns freely while nose drive is turned, its and open diff
if it is an LSD the wheel will be very tight to turn, if you can turn it!
same check with a diff on the floor,
hold one drive flange so it wont turn, turn the nose drive and if you struggle to hold the drive flange still, its LSD, if the opposite output flange turns freely while nose drive is turned, its and open diff
#6
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not always the case, it must "turn the same way" when forced under load
lots of vehicles when both wheels are jacked up will turn both wheels in same direction, with no LSD
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
this must always be checked under specific conditions, incase of badly worn LSD`s or tight open diffs
lots of vehicles when both wheels are jacked up will turn both wheels in same direction, with no LSD
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
this must always be checked under specific conditions, incase of badly worn LSD`s or tight open diffs
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#8
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So you can move the wheel to take up all the slack until you are then trying to turn the engine with that wheel
If you are not in gear the output shaft is not locked to the countershaft in the box so both will rotate freely and let you turn the wheel
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#9
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Hi
I recently took my diff out and replaced radial drive shaft seals
to do this i sat it on its side and knocked the seal in - both sides
now when i try and turn it by hand it turns then seems to jam ?? turn it back and rotates but then also jams later ?
could i have knocked something loose ?
thanks
I recently took my diff out and replaced radial drive shaft seals
to do this i sat it on its side and knocked the seal in - both sides
now when i try and turn it by hand it turns then seems to jam ?? turn it back and rotates but then also jams later ?
could i have knocked something loose ?
thanks
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