July 12, 2020, 05:33:06 PM

Author Topic: Drivetrain noise  (Read 5534 times)

Offline largeorangefont

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Re: Drivetrain noise
« Reply #45 on: December 07, 2019, 04:29:10 PM »
Ratech.com may ship internationally. I donít know if Jegs or Summit will.

Have you tried turning the outputs 90 degrees? The locking rings must be hanging up. Sometimes applying the pressure in a different spot will make them release easier.
Quote from: cool
Sell it to spacevomit.  He'll finish it.

Offline Gunnytron

Re: Drivetrain noise
« Reply #46 on: December 07, 2019, 04:41:49 PM »
Ratech.com may ship internationally. I donít know if Jegs or Summit will.

Have you tried turning the outputs 90 degrees? The locking rings must be hanging up. Sometimes applying the pressure in a different spot will make them release easier.

I know Summit and Jegs do ship overseas but I'm not sure they sell the full master kit. I've not actually checked that though.
I have since found this: https://eastcoastgearsupply.com/i-19231981-ford-8-8-irs-install-kit-master.html

Yep, I've tried rotating them, using 2 pry bars, hitting blocks of wood. I even took the centre pin out hoping I could get a jubilee clamp over the c-clip, but there's not enough room.

I am also a bit concerned about beating on the one that's part way out as it flops about all over the place and I can't tell if it's caught on a bearing or maybe the shims.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Offline digitalsolo

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Re: Drivetrain noise
« Reply #47 on: December 07, 2019, 09:56:35 PM »
Slide hammer for removal?   Thatís what Iíd use.
Blake MF'ing McBride
1988 Mazda RX7 - Turbo LS1/T56/ProEFI/8.8/Not Slow...   sold.
1965 Mustang Coupe - TT Coyote, TR6060, modern brakes/suspension...  project car
2016 BMW 428i xDrive Gran Coupe - Completely stock...ish

Offline largeorangefont

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Re: Drivetrain noise
« Reply #48 on: December 07, 2019, 11:25:57 PM »
JEGS or Summit will have everything you need. You may need to get the outer bearings and seals from Ford. But any rebuild kit will have everything else needed.
Quote from: cool
Sell it to spacevomit.  He'll finish it.

Offline Gunnytron

Re: Drivetrain noise
« Reply #49 on: December 08, 2019, 08:04:44 AM »
I've been looking at parts and I'm guessing it makes sense to replace the clutch plates whilst I'm in there but it appears to me, for the price of the carbon plates, I had just as well buy a whole new trac lok assembly for $200 more. Especially when you consider that I might need to replace the spider gears.

Trac-lok unit - FMS-M-4204-F318C
Install kit - FMS-M-4210-B2
IRS bearing and seal kit - FMS-M-4413-A
£436.25 to my door.
« Last Edit: December 08, 2019, 08:10:15 AM by Gunnytron »
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Offline largeorangefont

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Re: Drivetrain noise
« Reply #50 on: December 08, 2019, 09:55:48 AM »
There is not much reason to rebuild the diff, just get a new one. The diff is only $112 more than the rebuild kit. American Muscle sells them for $226 shipped. Be sure to call JEGS or Summit and they will price match valid better prices you find.
Quote from: cool
Sell it to spacevomit.  He'll finish it.

Offline Gunnytron

Re: Drivetrain noise
« Reply #51 on: December 12, 2019, 02:50:53 PM »
There is not much reason to rebuild the diff, just get a new one. The diff is only $112 more than the rebuild kit. American Muscle sells them for $226 shipped. Be sure to call JEGS or Summit and they will price match valid better prices you find.

Thanks for the heads up on the price matching, but after what felt like a telling off from Summit for having two accounts, they denied the price match on the basis that American Muscle wouldn't give them an overseas shipping price.

No big deal.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Offline Gunnytron

Re: Drivetrain noise
« Reply #52 on: December 14, 2019, 01:30:27 PM »
I finally got the axle stubs out.

After giving one of them a beating I saw this:


So I wedged a screwdriver under it, put some bolts in the axle studs so I could get the spider gears moving, removed the centre pin and pushed the circlip off.

After that I could run a pry bar through the diff and smacked it to push the other stub out. This destroyed both the clips and I am still not really sure what it was getting hung up on, but there is dead space between bearing spacer and the axle bearing.

You can see the gap here:


Both the axle bearings felt pretty good. The right carrier bearing had some damage on the cage. A few dents and dings. There's a chance I may have done that trying to get the axles out but I find that unlikely and the damage looked old.

You can just see the marks and dents here


The left carrier bearing has lots of pitting on the rollers. The race is fine but I am hoping that this might be my issue.


The pinion bearings don't feel too bad, but there is a little grittyness when you rotate it. I will get the pinion gear out and take a closer look.

One big surprise for me was that there were no shims on this at all. From what I can tell, that ain't right.
« Last Edit: December 14, 2019, 06:52:03 PM by Gunnytron »
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Offline radiomike

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Re: Drivetrain noise
« Reply #53 on: December 14, 2019, 02:31:46 PM »
Are they not the shims underneath both outer races in your photo? :scratch:

Offline Gunnytron

Re: Drivetrain noise
« Reply #54 on: December 14, 2019, 06:26:47 PM »
Are they not the shims underneath both outer races in your photo? :scratch:

I think they are referred to as spacers. The shims go next to those. At least that is the case in all the vids I have seen.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Offline DDv8

Re: Drivetrain noise
« Reply #55 on: December 14, 2019, 07:20:33 PM »
The pitted bearing is 100% gone, the other not so good either.  For peace of mind Id change out all bearings ( also check the posi frictions and plates (behind the side gears, mine had broken ears and worn splines)

https://www.jegs.com/i/Ford-Performance/397/M-4210-B2/10002/-1   bearing kit
https://www.summitracing.com/parts/fms-m-4210-b2

https://www.jegs.com/i/Ford-Performance/397/M-4413-A/10002/-1     outer bearing and seals
https://www.summitracing.com/parts/fms-m-4413-a

https://www.jegs.com/i/Ford-Performance/397/M-4700-B/10002/-1     standard posi rebuild
https://www.summitracing.com/parts/fms-m-4700-b

https://www.jegs.com/i/Ford-Performance/397/M-4700-C/10002/-1     carbon posi rebuild
https://www.summitracing.com/parts/fms-m-4700-c

DD
86fc old school 327, T5, converting to 8.8 tbird

Offline Gunnytron

Re: Drivetrain noise
« Reply #56 on: December 14, 2019, 07:42:10 PM »
The pitted bearing is 100% gone, the other not so good either.  For peace of mind Id change out all bearings ( also check the posi frictions and plates (behind the side gears, mine had broken ears and worn splines)

https://www.jegs.com/i/Ford-Performance/397/M-4210-B2/10002/-1   bearing kit
https://www.summitracing.com/parts/fms-m-4210-b2

https://www.jegs.com/i/Ford-Performance/397/M-4413-A/10002/-1     outer bearing and seals
https://www.summitracing.com/parts/fms-m-4413-a

https://www.jegs.com/i/Ford-Performance/397/M-4700-B/10002/-1     standard posi rebuild
https://www.summitracing.com/parts/fms-m-4700-b

https://www.jegs.com/i/Ford-Performance/397/M-4700-C/10002/-1     carbon posi rebuild
https://www.summitracing.com/parts/fms-m-4700-c

DD

Thanks for the parts list. I've spent a long time looking for the cheapest suppliers and for me it's best to get the rebuild kit and axle bearings from CJPony Parts. If I buy a complete diff assembly then EBay is cheapest. I think the spider gears are fine though.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Offline Gunnytron

Re: Drivetrain noise
« Reply #57 on: March 18, 2020, 03:53:25 AM »
I have been starting a few different threads about my diff so thought i'd show the probably cause of the noise here. One of the carrier bearings was shot. All the others were pretty much fine:





The issue I have now is the strange gear pattern. My solution for this is to throw money at it and buy a new ring and pinion. I figure I best do this now before the postal services are strained by this Covid thing.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Offline Gunnytron

Re: Drivetrain noise
« Reply #58 on: April 03, 2020, 11:51:05 AM »
My new ring and pinion gears turned up. Unfortunately I can't get to the workshop to swap the bearings over :(

There are a few differences with the new set. I thought I'd post just in case anyone is interested...or not.

The bottom edges of the gears have been rounded off


The head of the new one is slightly smaller



The outer face of the ring gear has been chamfered

http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.