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Looking to put a Yukon Grizzly in my 8.8, anyone else run this locker by chance?
Yukon grizzly locker
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78 Custom 460 NP435 NP205 Sniper EFI HyperSpark Ignition 4.56 Gears Front/Rear Grizzly Lockers
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4,483 Posts
Not in an 8.8. I have one in my D44 and in my 9" though.
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11,326 Posts
got one in D50 in front of my 88 mud bronco. its held up well, snapped 2 stud shafts inside of it even but the lockers hold up great. i think normally i would go with a Detroit over a Grizzly however i know some people been complaining about the Detroit lately. but the Grizzly locker is the ONLY locker avalible for D50
if your not in a rush, might wait and see if Yukon does any promotion this fall/winter. they usually give 50$ mail in rebate promotions. also shop around, Summit has them for like 772$ but Amazon has them for only 549$. might be some other places also.
if your not in a rush, might wait and see if Yukon does any promotion this fall/winter. they usually give 50$ mail in rebate promotions. also shop around, Summit has them for like 772$ but Amazon has them for only 549$. might be some other places also.
If it is not a Bronco, it's just not worth driving.....
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2,146 Posts
I have been running a Grizzly Yukon in my rear diff for the last 2 years and I love it.
It does take a bit of getting used to though if you have never had a locker. You will always hear and feel the clutches popping when turning tight and there is a sensation of torque transfer when you get on and off of the gas, especially at highway speeds. Kida feels like the rear end is sliding sideways for a split second. It's not aggravating enough to make me wish I didn't have the locker though, just takes some getting used to.
If I had it all to do over again I would go the route of an e-locker in both diffs. Right now my front diff is an open diff. I plan on putting an E-locker in the front some time in the future. Having the ability to turn off the lock is pretty nice.
It does take a bit of getting used to though if you have never had a locker. You will always hear and feel the clutches popping when turning tight and there is a sensation of torque transfer when you get on and off of the gas, especially at highway speeds. Kida feels like the rear end is sliding sideways for a split second. It's not aggravating enough to make me wish I didn't have the locker though, just takes some getting used to.
If I had it all to do over again I would go the route of an e-locker in both diffs. Right now my front diff is an open diff. I plan on putting an E-locker in the front some time in the future. Having the ability to turn off the lock is pretty nice.
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8,175 Posts
Thanks for the feedback guys , always appreciated.
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8,175 Posts
well i pulled the trigger on a Yukon Grizz , found it on Amazon for under $500 with free shipping. i should have it next week.
85 Bronco, 309ci I6 w/4bbl, np435, 4" lift, 37" Irok NDs, 4.56 w/ Detroit Locker and tru trac
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20,201 Posts
A bit off topic but...
How different are the D44 and D50 carriers? Obviously they are the same width, shaft DIA and spline count. Why will a d44 locker not work in a D50? Is it pinion depth? 8.5 vs 9" ring gear right? Why not just run a d44 chunk if you were to want a different locker?
D44 HD and D44 share the same center section right?
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11,326 Posts
the D44HD is a D44 but used in light duty F250. same third member (tho many had 4.10 gears), same stub shaft, same lockouts. the rest is different, tho similar to D44 jsut like a D50 is similar but different than a D60
the carriers of a D44 and D50 are very similar but not direct swap. D50 uses larger carrier bearings and i think larger inner pinion bearing. it does not have a carrier break like D44 has either.
a company called Drivetrain Specialist was at one point making sleeves to use a D44 carrier in a D50 housing. i emailed them about it and was intrested in it to use D44 TrueTrac in a D50. but it was kinda confusing because of the carrier breaks. IIRC had to use 3.93> D44 carrier with the sleeves in the D50 using D50 RnP. but had to use 4.10< D44 carrier to use D44 RnP. they also said something about the sleeves made it harder to do the RnP install because they had to be pressed on and off every time to do shimming. in the end i said screw it. i some reason am unable to find thier emails
they said that a D44 and D50 are almost same in strength. they designed the sleeves more for the D50 SAS used in some of the newer Fords and recommended to just use D44. i however do like the larger bearings and RnP so i decided to use D50 hoping it might hold up to more stress better in an offroad only truck. also at the time i had several D50 third members laying around and no D44 members. the axle lasted a good few offroad events under very harsh useage and has done well under very severe stress. the pinion bearings in it are now shot. but i feel like it might have done better than a D44. besides it did not cost any more than a D44 setup would, jsut less options.
i plan on SAS a SuperDuty D60 in the future. then i will probably rebuild the D50 and give it to a friend. he will probably not use the locker in it but he wants the 5.13 gears in it. in my 96 i decided to stay D44 but mainly because i got an e-locker for it for a great price. it has 5.13 gears also in it. i am considering doing a D60 SAS in it also so i may sell that third member unused
85 Bronco, 309ci I6 w/4bbl, np435, 4" lift, 37" Irok NDs, 4.56 w/ Detroit Locker and tru trac
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20,201 Posts
I just never knew the actual carrier differences. Im lucky enough to have owned all 3 before. Lol D44HD is like the bassterd child of D50 and D44...
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11,326 Posts
the D50 is the bastard child of a D44 and D60. the D44HD is the bastard child of a bastard child
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8,175 Posts
well i got the locker installed last night. i'll be trying her out this sunday on our club snow run.
i'll be needing axleshafts and axle bearings/seals soon though as there was some good amount of wear on both shafts. i'd really like to go with Chromoly shafts. Besides Yukon, anyone else have suggestions.
i'll be needing axleshafts and axle bearings/seals soon though as there was some good amount of wear on both shafts. i'd really like to go with Chromoly shafts. Besides Yukon, anyone else have suggestions.
84 Bronco, 351w, c6, custom doubler, np208, 5.13’s, TTB44, 9”, locked f/r
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1,398 Posts
1980-96 Chrome Moly Axle Set, Dana 44 IFS - Broncograveyard.com
This is the outer axle shaft.br br Yukon replacement outer stub for Dana 44 IFS, 9.92 long, 19 spline, 4340, uses 5-760X u/joint br br Yukon 4340 Chrome-Moly axles provide up to 50% increased strength over stock axles for use in extreme performance applications with large tires and high...
shop.broncograveyard.com
That’s what I run, with Yukon super joints. And a D50 inner. I used to break a shaft and/or joint about every wheeling trip, back when I ran stock shafts with 760x’s welded in. Been over 2 years now, and I haven’t broken anything up there yet
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