Wiggilez Posted March 13, 2015 Share Posted March 13, 2015 saw this on youtube, taught i'd share it here, seeing as I haven't seen it around here. It's quite well explained Link to comment Share on other sites More sharing options...
dasbulliwagen Posted March 13, 2015 Share Posted March 13, 2015 I remember hearing something about this a while back. Any info on years and models to look for? Link to comment Share on other sites More sharing options...
dustyinthedirt Posted March 13, 2015 Share Posted March 13, 2015 This is worth looking into Link to comment Share on other sites More sharing options...
88whitemanche Posted March 13, 2015 Share Posted March 13, 2015 Quick search got me this.... http://www.turbobricks.com/mods.php?content=art0014 Link to comment Share on other sites More sharing options...
yxmj Posted March 13, 2015 Share Posted March 13, 2015 It is called a G80 Found in their turbo cars.......if you could find a turbo Volvo wagon it would probably have it......I will see if i can find years and models Link to comment Share on other sites More sharing options...
Comanche County Posted March 13, 2015 Share Posted March 13, 2015 http://www.davebarton.com/volvorearends.html Link to comment Share on other sites More sharing options...
Incommando Posted March 13, 2015 Share Posted March 13, 2015 if you can find one of the old Dana Power-lok LSD's for the D30 they are a good unit. But I don't now if these carriers will work with a high pinion axle? Link to comment Share on other sites More sharing options...
Wiggilez Posted March 13, 2015 Author Share Posted March 13, 2015 I remember hearing something about this a while back. Any info on years and models to look for? They have a three part series on it, and I believe in the second one they say either a 240 and some other one, but can't remember off the top of my head. edit, they also state that models that are turbo with auto trans and towing package will have a diff capable of 4.10 gears. Link to comment Share on other sites More sharing options...
shelbyluvv Posted March 13, 2015 Share Posted March 13, 2015 There's a whole thread on NAXJA by these guys about the D30 diff. Link to comment Share on other sites More sharing options...
88whitemanche Posted March 30, 2015 Share Posted March 30, 2015 Well I bit the bullet and got me an lsd from a volvo 940 set for 4.10s.... Link to comment Share on other sites More sharing options...
Minuit Posted March 30, 2015 Share Posted March 30, 2015 Are these clutch-type diffs that eventually need to be rebuilt or some other type? Link to comment Share on other sites More sharing options...
Wiggilez Posted March 30, 2015 Author Share Posted March 30, 2015 I believe in one of their videos they say it mechanical. Link to comment Share on other sites More sharing options...
88whitemanche Posted March 31, 2015 Share Posted March 31, 2015 Link to comment Share on other sites More sharing options...
ftpiercecracker1 Posted March 31, 2015 Share Posted March 31, 2015 Are these clutch-type diffs that eventually need to be rebuilt or some other type? Indeed these are mechanical. Torsen design, no friction discs. I am not familiar with their durability/toughness but after doing several hours of research and watching some videos i must say i am deeply intrigued with how they work. They are hella complicated. Unlike a typical LSD that utilizes springs to apply pressure at all times and begins to slip as greater torque is applied, the torsion design acts as a fully open diff under normal driving conditions and "locks" once significant slippage occurs on one side or the other. I think this design is really really awesome, for the simple fact that some engineer figured out a way to divert power from a slipping tire to a tire with traction using only mechanical principles. Link to comment Share on other sites More sharing options...
ftpiercecracker1 Posted March 31, 2015 Share Posted March 31, 2015 Well I bit the bullet and got me an lsd from a volvo 940 set for 4.10s.... Please please please, let us know how the install goes. I am VERY interested in doing this myself. This is my plan. . . Volvo LSD (4.10s) + a ford 8.8 (LSD, disc brakes, 4.10s) = super cheap super capable offroad combination. Link to comment Share on other sites More sharing options...
88whitemanche Posted March 31, 2015 Share Posted March 31, 2015 I will but it won't be for a while....I still have to install my Amc 20...and save for the install...I have all the parts collected... Link to comment Share on other sites More sharing options...
gogmorgo Posted March 31, 2015 Share Posted March 31, 2015 Indeed these are mechanical. Torsen design, no friction discs. I am not familiar with their durability/toughness but after doing several hours of research and watching some videos i must say i am deeply intrigued with how they work. They are hella complicated. Unlike a typical LSD that utilizes springs to apply pressure at all times and begins to slip as greater torque is applied, the torsion design acts as a fully open diff under normal driving conditions and "locks" once significant slippage occurs on one side or the other. I think this design is really really awesome, for the simple fact that some engineer figured out a way to divert power from a slipping tire to a tire with traction using only mechanical principles. Actually, the Torsen is fairly simple in principle. They're set up the same way as a typical open differential, only they use helical gears against a worm instead of the traditional spider gears. This ends up working like a worm drive in that you can spin the screw part and it'll turn the worm gear, but you can't spin the screw by turning the gear. Because of the helical cut of the gears in a Torsen, you do get some "backwards" movement, which is what allows it to function as an open diff, but you can't get huge differential wheel speeds because the gears will bind. It also doesn't lock, ever. It's only a limited slip, and the amount of power it can send to the wheel with more traction is a function of the amount of resistance (i.e. traction) at the other wheel. That means that if you lose traction completely, say by picking up a wheel, it can't send much power to the other side... but a gentle application of the brakes will fix that. There's a lot of info out there on how they work, and a lot of it is pretty well engineering reports explaining all the minor details of this and that, and the rather beautifully simple bigger picture of how the unit does its thing tends to get lost in all the focus on torque bias ratios and preload and other mumbo-jumbo. Link to comment Share on other sites More sharing options...
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