Differential Bushing finally failed...

[shogun32]

Metal subframe mount bushing are a no-no

I have the CB010 on one car and Whiteline in the other - IRS subframe bushings. Again the Whiteline a PITA to install (have to cut the Ford ones out) but are neigh silent. My CB010 equipped car has what I call road/diff growl. It's not unpleasant nor loud enough to be objectionable - it's just there constantly. The WHiteline-equipped car is so quiet I can hear the click/clack of the driveshaft transitioning from loaded to unloaded. Whiteline has a CB010-like easy-install product (I have one NIB kit) that has no metal in it except a big, fat fender washer to support the bolt (and the bushing core). One of these days may look into if it can be retrofited into the CB010/762 setup I have. Near as I can tell it's a very simple swap. I don't know why Whiteline doesn't get more airplay. They have the best solution out there IMO. Ford needs to license it and stop with the retarded voided soft rubber disaster.

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[TeeLew]

I completely agree that metal bushings are the best idea. They're just not legal in the SCCA STU class, so I don't get much of a vote.

 

[aeonrevolution]

Just touching base here. Finding this thread was like a EUREKA moment. I developed a clunk at low speed after installing my Steeda Sways and End Links and swore up and down it had to be those. I think it was just coincidence that it was near the same time as the Steeda install. Looks like it was actually these bushings the entire time.

Trying to verify which kit is the correct one to purchase though. I've got two I'm looking at with near identical names, but very different parts.

https://www.summitracing.com/parts/...33lowYgj4tHEqUOYRt229iScYtb5iNoRoCI6oQAvD_BwE

https://www.summitracing.com/parts/bmr-bk047?rrec=true

 

[Tractor Junk]

If you want to hear howling, I’ve been running the FRPP aluminum replacements since the 1,000 mile mark on my car. Combined with no carpet behind the seats, it screams (even with a helmet on). If this was a streetcar it would be unlivable. LOUD!

 

[shogun32]

https://www.summitracing.com/parts/...33lowYgj4tHEqUOYRt229iScYtb5iNoRoCI6oQAvD_BwE
https://www.summitracing.com/parts/bmr-bk047?rrec=true

CB010 is a "bandaid". The BK047 is "surgery". Same location on the patient.

 

[AlbertD]

@aeonrevolution The 2 kits you mentioned are for the IRS cradle bushings... My original problem was due to a torn differential bushing. Just wanted to make sure that you are looking at the right replacement parts. If you actually have a torn diff bushing then you will want to look at Whiteline KDT933.

 

[2morrow]

This is a great thread. I have the same issue on my car as well. Its mainly a track focused machine with very little street driving.

To @BmacIL 's point, the Lethal Extreme Hardware Upgrade Kit is a great idea. I noticed that it said its a through bolt design which is nice and that it is compatible with the BMR Polyurethane IRS Bushing kit and other aftermarket options but has anyone tried it with the Steeda kit?

I already have the 90 durometer black pucks and thinking that the 2 part systems will isolate and support the OEM bushings without the need of removing the subframe and replacing them.

Thanks all!

 

[shogun32]

I would use the Hardware Upgrade kit's tube at least to fill the OEM void and then you can layer on the pucks. I don't know if the upgrade kit's bolts are long enough with the pucks in place but if they are, then no point not using them.

 

[2morrow]

Just an update, I ordered the Lethal Extreme Hardware Bolt Kit and getting the 90 durometer black steeda pucks installed. There's a couple other things to prep the car for a late year track push too.

I'm hoping it'll all work out.

 

[Cory S]

Are these Whiteline KDT 933’s still around? My buddy wants to go back to soft quiet OEM diff mount bushings, but Ford hasn’t offered an actual replacement yet for some odd reason.

 

[shogun32]

Are these Whiteline KDT 933’s still around?

yes but you'll have more luck finding the 934.
I'm tempted to call up Whiteline and ask for a shipment of 20 units.

I reached out to both US distributor and Whiteline AUS to see if we can't get some made.

 

[Cory S]

yes but you'll have more luck finding the 934.
I'm tempted to call up Whiteline and ask for a shipment of 20 units.

Difference between the 933 and 934?

 

[shogun32]

Difference between the 933 and 934?

933 are total-replacement: cut the originals out. 934 are the 'puck' solution that works with OE bushings.

 

[shogun32]

Per Whiteline, Steeda is supposedly under license to manufacture/sale 933 going forward. I'll call Steeda in the morning I guess and see if I can pry out of them an ETA.

 

[Cory S]

Per Whiteline, Steeda is supposedly under license to manufacture/sale 933 going forward. I'll call Steeda in the morning I guess and see if I can pry out of them an ETA.

Awesome. Yeah, once these guys sawzall the OEM bushings out, they wish they never did. I went with the red Steeda sandwich inserts myself. MIGHT have increased gear noise by 5% tops. I’m very pleased.

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