Will these fit my 1995 jeep wrangler yj? should i put them on the front, back, or both?

Yes this will work very well in your front High pinion Dana 30. You would need a different locker for the rear Dana 35 in your YJ but i would personally not put an auto locker in it. You will break the dana35 easily. if you really want a locker for the rear - consider swapping the axle for a ford 8.8 or even a dana 44 out of a waggoneer

will this work on my 87 xj?

Yes, this locker will work GREAT as long as you have the Dana 44 Rearend.Let me know if you have any other questions.Thanks,BRYDON641-751-8060staticz2229@gmail.com

Will this fit my 2007 Jeep Unlimited with Dana 44 rear axle with no additional shims or parts?

Yes this should fit in your 44 using the same shims you already have in there. This will pop considerably on pavement in your rear diff. I have it in my front and it behaves like an open diff when in 2wd. It locks up in 4wd and becomes stiffer to steer but climbs rocks much better. I have the D-30 front.

Does this locker make noise on tight turns?

Yes, all lunch box type lockers make a clicking noise on turns. On slow tight turns you may occasionally hear and feel a loud banging. I have this locker in my front D30 and while turning into a parking space I turn slowly and don't accelerate while doing this type of turning. As others have said, it's normal.

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⚙️ Unlock unstoppable torque with Spartan precision!

PERFECT FIT - Specifically engineered for Dana 44 differentials with 30 spline axles—no guesswork.
EFFORTLESS UPGRADE - Simple drop-in installation means less downtime, more trail time.
UNMATCHED DURABILITY - Crafted from premium 9310 steel for rock-solid reliability under pressure.
CONFIDENCE GUARANTEED - Backed by a 5-year warranty against manufacturer defects for peace of mind.
PRECISION PERFORMANCE - Heat-treated and precision-cut teeth ensure flawless engagement every time.

The USA Standard Gear Spartan Locker (SL D44-30) is a heavy-duty, drop-in locker designed for Dana 44 differentials with 30 spline axles. Made from heat-treated 9310 steel with precision-cut teeth, it delivers superior strength and reliable performance. Weighing 2.51 kg and backed by a 5-year warranty, it’s the ultimate upgrade for serious off-roaders seeking enhanced traction and durability.

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Manufacturer	Yukon Gear
Brand	USA Standard Gear
Model	Spartan Locker for Dana 44 Differential with 30 Spline Axles SLD44-30
Product Dimensions	30.48 x 33.02 x 7.62 cm; 2.51 kg
Item model number	SL D44-30
Exterior	Machined
Manufacturer Part Number	SL D44-30
Position	Front
Special Features	Backed by 1 year warranty, Made from 9310 steel, Fits Dana 44 differential with 30 spline axles, Heat treated and precision cut teeth, Easy, drop-in installation
Item Weight	2.51 Kilograms

USA Standard Gear(SL D44-30) Spartan Locker for Dana 44 Differential with 30 Spline Axles, Steel (Pack of 1)

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