LSD rebuild-able?
Three Wheelin'
Joined: May 2001
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From: Hudson Valley NY
Originally Posted by John Veninger
Here is what 500+ ft-lbs, 335 Hoosiers and a hairpin turn does to an LSD unit.
Shaft welded itself to the housing. Had to drill and grind to get it out of the case
Anyone think I can use JB Weld to fix??
Shaft welded itself to the housing. Had to drill and grind to get it out of the case
Anyone think I can use JB Weld to fix??
John,
I have seen that type of failure in all types of differentials many times, the Pinion gears seizes to the pinion shaft ,spiders gears can’t turn, you witness the end result and lack of lube is the culprit. I modified the pinion shaft by grinding four flat spots on the shaft, allowing lube oil to penetrate the pinion gears. I also use synthetic Gear lube. It has better cold /hot lubricating properties.
I am a Quaife dealer, 30 units are the minimum new product runs for a low production car, the cost for each unit about $1,500.00. Mercedes AMG Differentials retail for $1,700 and that doesn’t include installation.
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FYI, the NEW old stock kind of shafts that you can get that look like the pic above, HAVE the flats already machined into the sides.
That shaft, as I have mentioned before, looks somewhat "simple" to make, but what would it be made out of to be a bit stronger?
That shaft, as I have mentioned before, looks somewhat "simple" to make, but what would it be made out of to be a bit stronger?
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From: Nova Scotia
Originally Posted by Vilhuer
Didn't factory add oil feed grooves into those shafts in some later version or do I remember wrong?
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From: Helsinki, Finland
Stock GTS pump pushes oil into backside of ring gear close to where it meets pinion gear. Pinion must then spread it aroung pretty efficiently in entire differential housing.
Besides oil feed there are also two parts which job is to guide oil directly into bearings. At least one of them is also only used in manual GTS. I haven't looked into automatic GTS diff I have on table enough to know if they can be fitted to it easily or not. Oil trap 1. is only useful when pinion shaft is hollow.
Besides oil feed there are also two parts which job is to guide oil directly into bearings. At least one of them is also only used in manual GTS. I haven't looked into automatic GTS diff I have on table enough to know if they can be fitted to it easily or not. Oil trap 1. is only useful when pinion shaft is hollow.
Three Wheelin'
Joined: May 2001
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From: Hudson Valley NY
Originally Posted by Vilhuer
Stock GTS pump pushes oil into backside of ring gear close to where it meets pinion gear. Pinion must then spread it aroung pretty efficiently in entire differential housing.
Besides oil feed there are also two parts which job is to guide oil directly into bearings. At least one of them is also only used in manual GTS. I haven't looked into automatic GTS diff I have on table enough to know if they can be fitted to it easily or not. Oil trap 1. is only useful when pinion shaft is hollow.
Besides oil feed there are also two parts which job is to guide oil directly into bearings. At least one of them is also only used in manual GTS. I haven't looked into automatic GTS diff I have on table enough to know if they can be fitted to it easily or not. Oil trap 1. is only useful when pinion shaft is hollow.
That’s used, #2 = oil trapping funnel catches sprayed oil from # 1, that oil is routed to the Ring gear PINON bearing in manual transmissions, not the spider gear pinion shaft, Different Pinion.
The spider gears pinion shaft strength is not the issue, it’s a lube problem or lack there of.
Don’t know if later years Differentials have that flat spot. I also modify transfer cases and manual transmissions shift rod the same way, only were the rod end slides into the case, if they don’t already have one, for a another reason.
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From: New Jersey
I have the oil trap (part #2) inside my 1989 transmission. I was running an external cooler and redline gear oil.
I just think the diff was worn and just couldn't take the additional punishment.
Here is something from the 1982 service information manual:
I just think the diff was worn and just couldn't take the additional punishment.
Here is something from the 1982 service information manual:
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From: Helsinki, Finland
Originally Posted by Steve Cattaneo
That’s used, #2 = oil trapping funnel catches sprayed oil from # 1, that oil is routed to the Ring gear PINON bearing in manual transmissions, not the spider gear pinion shaft, Different Pinion.
Originally Posted by John Veninger
Here is something from the 1982 service information manual:
Three Wheelin'
Joined: May 2001
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From: Hudson Valley NY
Originally Posted by John Veninger
I have the oil trap (part #2) inside my 1989 transmission. I was running an external cooler and redline gear oil.
I just think the diff was worn and just couldn't take the additional punishment.
Here is something from the 1982 service information manual:
I just think the diff was worn and just couldn't take the additional punishment.
Here is something from the 1982 service information manual:
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From: Berkeley, CA
That's pretty ugly. My LSD failed but that was due to an experiment to increase the lock. The teeth on the clutches were stripped.
LSD failure doesn't seem too common even w/ high hp cars, so hopefully this is just an isolated case w/ your particular diff. You're on the bleeding edge now, racing a stroker . . . As much as you are a race car driver, you're now the ultimate parts tester too.
LSD failure doesn't seem too common even w/ high hp cars, so hopefully this is just an isolated case w/ your particular diff. You're on the bleeding edge now, racing a stroker . . . As much as you are a race car driver, you're now the ultimate parts tester too.
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Originally Posted by Steve Cattaneo
I also modify transfer cases and manual transmissions shift rod the same way, only were the rod end slides into the case, if they don’t already have one, for a another reason.
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Joined: Feb 2005
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From: Anaheim
O.K.
I'm tired of being stupid. I can't stand it anymore and have to ask....sorry.
Every time I look at this thread, I look for the pictures, which are not present. Where did you hide them, John?
This probably will not fix me being stupid, BTW. It's a genetic thing. Blame my mom....I had nothing to do with it.
greg brown
I'm tired of being stupid. I can't stand it anymore and have to ask....sorry.
Every time I look at this thread, I look for the pictures, which are not present. Where did you hide them, John?
This probably will not fix me being stupid, BTW. It's a genetic thing. Blame my mom....I had nothing to do with it.
greg brown