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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Ordering a new 9” rear end from Strange Engineering

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    10/26/2019 9:39 AM  #1

    MS
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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,291

    Ordering a new 9” rear end from Strange Engineering

    They do not offer any warranty on how quiet it will be.  One of the reasons I am buying a new rear end is because mine has alot of gear noise.   Has anyone bought from them?  What were your results?

    I sure would hate to get a brand new differential from a well-known company and have it be noisy, with no recourse.

    What experience do you guys have with this?

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    10/26/2019 4:17 PM  #2

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,980

    Re: Ordering a new 9” rear end from Strange Engineering

    Give Currie a call I believe they can pollish  their gears, might be they could  be noise free.

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    10/27/2019 5:59 AM  #3

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,520

    Re: Ordering a new 9” rear end from Strange Engineering

    In my experience Yukon gears are factory quiet.  Richmonds howl on deceleration.  Not sure who Currie or Strange are using for gears, but that's where the issue would lie instead of with the company selling the assemblies. 

     

    10/27/2019 7:31 AM  #4

    Hornman
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    From: Mansfield, Texas
    Registered: 4/01/2013
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    Re: Ordering a new 9” rear end from Strange Engineering

    I don’t have experience with all the various brands of gears available, but based on what I have seen on-line over the years, Ford gears are the ones least likely to be noisy. You could buy a new chunk with Ford gears.

     

    10/27/2019 7:51 AM  #5

    Bullet Bob
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    From: Montrose, Colorado
    Registered: 4/01/2013
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    Re: Ordering a new 9” rear end from Strange Engineering

    A couple of years ago I read that FRP was selling Motive gears.  The one set of Motives that I had experience with howled like a mashed cat.  I then went to Yukons and they were better, not perfect but better.  Of course, the set up could also be part of the problem.
    IMO if you really want quiet you should narrow an 8.8 and set it up yourself with used Ford gears.  Easy to do...If I can anyone can...and they are plenty strong enough.

    Just sayin' but I'll never pay someone to set up gears again. 

    BB
     

    "you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
     

    10/27/2019 9:09 AM  #6

    Rudi
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    From: Stuck in the 50's Welland Ca
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    Re: Ordering a new 9” rear end from Strange Engineering

    When I redid my peg leg 2.89 geared  8" I used a set of Motive gear 3.25 gear set and an Auburn gear traction control.
     I set the gears up myself using the 68 Ford shop manual but did not use the "production" time saving crush sleeve  method of setting the preload. I ordered a set of shims and although more time consuming results in a better job, IMO.
     My Motive gears run as quiet as the original 2.89's, I can't hear them.
     I agree the statement of never paying anybody to do the rear gears. It ain't rocket science but some special tools are needed.

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    10/27/2019 7:45 PM  #7

    6sally6
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    From: Surfside Beach,SC
    Registered: 4/02/2013
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    Re: Ordering a new 9” rear end from Strange Engineering

    Rudi wrote:

    .
     My Motive gears run as quiet as the original 2.89's, I can't hear them.
     .

    Butt Rudi...............you wear hearing aids!
    6sally6 

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    10/27/2019 7:56 PM  #8

    DC
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    From: Marshall, MI
    Registered: 4/01/2013
    Posts: 1,251

    Re: Ordering a new 9” rear end from Strange Engineering

    The only gear sets I have that are quiet are ones that I set up! I always use a set up bearing on the pinion that has been ground out so that it will hand push fit on the pinion so I can get the pinion shim just right. I say that because when you think you have it just right and try to set the back lash, the pattern on the gear teeth does not always com out with the straight line on both sides of the pattern. Then you need to adjust the pinion shim. Most suppliers don't do the second round of pinion shim adjustments. My time in R & D at Eaton axle taught me that quiet gear sets are happy gear sets. That was the only way to get an assembly to last through the Ford Quality test we had to do on every umpteenth axle assembly.

     

    10/28/2019 5:11 AM  #9

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,520

    Re: Ordering a new 9” rear end from Strange Engineering

    I have been setting up my own gears for about 20 years now.  There are fancy tools, but in the end all you really need is a way to measure bearing drag (I use an in/lb torque wrench) and a way to read backlash (still using a Harbor Freight dial indicator and stand with an adapter I made to connect the two).  Tools like yoke holders and adjusting nut wrenches can be made for next to nothing with scrap stuff you likely have lying around your shop. 

    What I will say gear wise is that I have also used Ford gears over the years, but when regearing the 8.8 in my '89 I had an issue where the splines on the Ford gearset were machined just slightly too large to allow the yoke to fit properly.  I fought it for a while, but eventually just ordered a set of Yukon gears and found they were machined properly.  The yoke was a new Ford part as well, and the old yoke had the same fitment issues on the new gears as the new one.  This wasted about half a day between finding the issue and time wasted trying to do a gear setup.  This experience has put me off Ford gears.  From this point forward I'll only use Yukon.  I will say, check Amazon, etc. for better prices than you get ordering directly from Randys. 

     

     

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