front LSD? - Pirate4x4.Com : 4x4 and Off-Road Forum

l.tindle · 10-13-2011, 11:30 AM

hello has anyone put an 10 bolt LSD from a mk 1 trooper rear axle into a mk 2 trooper 10 bolt front axle?
any information or advice would be much appreciated

thanks
liam

chadzu · 10-13-2011, 12:17 PM

I have never seen a 10 bolt trooper rear axle that had a factory LSD. There have been a few people who have put an impulse lsd into the front of their troopers. The rear 10 bolt third is a little different than the fronts, mainly the ring gear is thicker on the fronts and the third casting is different because of this. Now, if you did happen to find a 10 bolt LSD, you could install it into your front third and all would be well.
It seems that it would be a lot of work for the minimal gains in traction the lsd would provide. Also, a front LSD will give you most of the downsides of a locker in the front with none of the true traction a locker gives you.
If you have it and can do the work to install it go for it, it may work for you and your style of wheeling. I ran around with a lockrite in the front for a few years, it worked pretty good off road, but was a handful on snowy/icy roads.

l.tindle · 10-14-2011, 06:58 AM

well i have found a 10 bolt LSD but its not cheap £200 thats about US$306 so its not far behind an aussi locker and off what people have said its not really worth doing, so might just save up and get aussi lockers

unRL · 06-10-2012, 10:38 AM

Quote:

Originally Posted by l.tindle

well i have found a 10 bolt LSD but its not cheap £200 thats about US$306 so its not far behind an aussi locker and off what people have said its not really worth doing, so might just save up and get aussi lockers

I know it been awhile, but you said you found a lsd. for the front. Is it still available, did you use it yourself?, how did you like it. Just for fun I started a 91 Rodeo project. Got it for 600 bucks and it came with an ARB in the back. (Toyota rear axles with a Mopar 8 3/4 center) I did a super good trim job on the fenders and so I have a set of 35s on it with no lift kit. Moved the floor board clear back to the clutch pedal to do it. So with 35s I dont want a locker in the front or im sure something will break. and if I were to spend the money on a ARB I might as well just just do the SAS.

BigSwede · 06-12-2012, 08:05 AM

FWIW I have wheeled a Trooper with 35s and ARB lockers front/rear for 5 years now...I have broken 2 CVs but that's about it, and each time it was while doing something dumb and avoidable. Get salvage yard replacements for $25-40, easy-peasy.

r0nin89 · 06-12-2012, 03:02 PM

Quote:

Originally Posted by unRL

I know it been awhile, but you said you found a lsd. for the front. Is it still available, did you use it yourself?, how did you like it. Just for fun I started a 91 Rodeo project. Got it for 600 bucks and it came with an ARB in the back. (Toyota rear axles with a Mopar 8 3/4 center) I did a super good trim job on the fenders and so I have a set of 35s on it with no lift kit. Moved the floor board clear back to the clutch pedal to do it. So with 35s I dont want a locker in the front or im sure something will break. and if I were to spend the money on a ARB I might as well just just do the SAS.

Do yourself a favor and just do the SAS. Dont invest money in IFS.

unRL · 06-12-2012, 11:58 PM

Quote:

Originally Posted by BigSwede

FWIW I have wheeled a Trooper with 35s and ARB lockers front/rear for 5 years now...I have broken 2 CVs but that's about it, and each time it was while doing something dumb and avoidable. Get salvage yard replacements for $25-40, easy-peasy.

That is very nice to know, and who knows I might go with the arb as I am used to them front and rear in my other rig. However the idea here was reliability, I'd rather pull a winch cable once or twice than have to fix something. The LSD would be kind of a fuse for the front end. I figure with a steering brake set up, even if I do wind up with a tire in the air spinning I can apply a little pressure to that brake and pull myself out as well. For more info on this build and its theory, please check out . /forum/isuzu/1071448-jantzanita-sleeper-rodeo-build-wheeling-cheap.html

unRL · 06-13-2012, 12:00 AM

Quote:

Originally Posted by r0nin89

Do yourself a favor and just do the SAS. Dont invest money in IFS.

That would of course be an excellent opportunity to build one of my Jana 54 front ends.

unRL · 06-13-2012, 12:06 AM

On the other hand I found this set up while searching for and impulse LSD.
It looks like it has some merit. Its a limited slip set up that fits into as stock open carrier, and I see its viable for their applications, and would like to see how good it is with a tire in the air. I mean any limited slip with a tire in the air will slip, but if you get a couple hundred Ft-lbs of torque going to the wheel that's on he ground often that's all you need to keep moving. Any one had any experience with one of these???http://www.phantomgrip.com/

BigSwede · 06-13-2012, 06:58 AM

I know a guy some years ago who found a 10-bolt LSD and installed in his Trooper, so he had front/rear LSDs...he made it across the Golden Crack in Moab just fine.

chadzu · 06-30-2012, 08:41 AM

Quote:

Originally Posted by unRL

That would of course be an excellent opportunity to build one of my Jana 54 front ends.

Just wondering if it would be possible to put 60 gears in a 50? I had a SD 50 that I combined with rodeo 44 outers and shafts. To make a 6 lug SF high pinion rear axle. I was hoping that I could use your ring gear deflectionsnubber kit, but it looks like the 50 gear doesn't stick out past the carrier. Just wondering if you ever figured out a way to put the 60 gears in a SD 50 housing?

unRL · 07-01-2012, 09:35 AM

Quote:

Originally Posted by chadzu

Just wondering if it would be possible to put 60 gears in a 50? I had a SD 50 that I combined with rodeo 44 outers and shafts. To make a 6 lug SF high pinion rear axle. I was hoping that I could use your ring gear deflectionsnubber kit, but it looks like the 50 gear doesn't stick out past the carrier. Just wondering if you ever figured out a way to put the 60 gears in a SD 50 housing?

I get this question a lot, " 60 into a 50, unfortunately it is impossible. For some reason Dana made their hypoid distances different. D30, 60,70,80 all have 1 1/8" hypoid distance. Dana 44 & 50 have 1 1/2" hypoid distance, and as the housings are cast for those distances there is no way to change it.
As for the ring gear deflectionsnubber kit, (load Bolt) It can be put into the 50 or 54 or JK combos, as the carrier can be trimmed down to the edge of the ring gear bolts, thus leaving enough of the back side of the ring gear for the load bolt to run on it. I'll get some pics of that set up soon.

chadzu · 07-04-2012, 04:13 PM

That sucks. I have an arb to use in it, so i guess I can chuck up the arb case and trim it down.

unRL · 07-05-2012, 10:17 AM

Quote:

Originally Posted by chadzu

That sucks. I have an arb to use in it, so i guess I can chuck up the arb case and trim it down.

which arb do you have?

chadzu · 07-09-2012, 11:03 PM

Its in a ttb 50 pumpkin, the two piece case style, not sure on model number

10-13-2011, 11:30 AM	#1 (permalink)
l.tindle Registered User Join Date: Oct 2011 Member # 200980 Posts: 2	front LSD? hello has anyone put an 10 bolt LSD from a mk 1 trooper rear axle into a mk 2 trooper 10 bolt front axle? any information or advice would be much appreciated thanks liam

06-12-2012, 08:05 AM	#5 (permalink)
BigSwede Registered User Join Date: Jun 2003 Member # 20752 Location: Minnesota Posts: 310	FWIW I have wheeled a Trooper with 35s and ARB lockers front/rear for 5 years now...I have broken 2 CVs but that's about it, and each time it was while doing something dumb and avoidable. Get salvage yard replacements for $25-40, easy-peasy. __________________ Steve Carlson 95 Trooper LS - 35s, ARBs & 5.38s

06-13-2012, 12:06 AM	#9 (permalink)
unRL Granite Guru Join Date: Oct 2003 Member # 23586 Location: Poulsbo WA Posts: 675	On the other hand I found this set up while searching for and impulse LSD. It looks like it has some merit. Its a limited slip set up that fits into as stock open carrier, and I see its viable for their applications, and would like to see how good it is with a tire in the air. I mean any limited slip with a tire in the air will slip, but if you get a couple hundred Ft-lbs of torque going to the wheel that's on he ground often that's all you need to keep moving. Any one had any experience with one of these???http://www.phantomgrip.com/ __________________ Carl Jantz A.S.,B.S.,M.E. & S.O.H.Ks. SUPER JP ,52 Flat Fender, 25" stretch, JANA 76's, 300M, ARBS, 5.89's, 47s, NV4500, PTO, 4:1, HYD, TIRELOC, and Patented the Yukon Superjoint. http://jantzengineering.com/

06-13-2012, 06:58 AM	#10 (permalink)
BigSwede Registered User Join Date: Jun 2003 Member # 20752 Location: Minnesota Posts: 310	I know a guy some years ago who found a 10-bolt LSD and installed in his Trooper, so he had front/rear LSDs...he made it across the Golden Crack in Moab just fine. __________________ Steve Carlson 95 Trooper LS - 35s, ARBs & 5.38s

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10-13-2011, 12:17 PM	#2 (permalink)
chadzu Registered User Join Date: Apr 2011 Member # 188006 Posts: 81	I have never seen a 10 bolt trooper rear axle that had a factory LSD. There have been a few people who have put an impulse lsd into the front of their troopers. The rear 10 bolt third is a little different than the fronts, mainly the ring gear is thicker on the fronts and the third casting is different because of this. Now, if you did happen to find a 10 bolt LSD, you could install it into your front third and all would be well. It seems that it would be a lot of work for the minimal gains in traction the lsd would provide. Also, a front LSD will give you most of the downsides of a locker in the front with none of the true traction a locker gives you. If you have it and can do the work to install it go for it, it may work for you and your style of wheeling. I ran around with a lockrite in the front for a few years, it worked pretty good off road, but was a handful on snowy/icy roads.

10-14-2011, 06:58 AM	#3 (permalink)
l.tindle Registered User Join Date: Oct 2011 Member # 200980 Posts: 2	well i have found a 10 bolt LSD but its not cheap £200 thats about US$306 so its not far behind an aussi locker and off what people have said its not really worth doing, so might just save up and get aussi lockers

07-04-2012, 04:13 PM	#13 (permalink)
chadzu Registered User Join Date: Apr 2011 Member # 188006 Posts: 81	That sucks. I have an arb to use in it, so i guess I can chuck up the arb case and trim it down.

07-09-2012, 11:03 PM	#15 (permalink)
chadzu Registered User Join Date: Apr 2011 Member # 188006 Posts: 81	Its in a ttb 50 pumpkin, the two piece case style, not sure on model number