Cobra Mustang IRS Delrin/UHMW/Alum bushing kit w/adj. sway bar links & bumpsteer kit

ac427cobra · 02-23-2006, 12:11 AM

Greetings Fellow Stangers:

Congratulations. You've just discovered the finest Mustang Cobra IRS bushing kit available on the market today.

The price for the complete IRS bushing kit is $595.00. Individual component prices are listed below. Note, as of 6-01-09 we have unfortunately been forced to eliminate the free freight.

I can tell you two things. #1 if you are changing your car from completely stock to this set-up, you will be astounded with the difference. #2 if you ever had to deal with bushings from brand "N" supplier you will be doing cartwheels installing these. I guarantee it.

THE IRS BUSHING SET

Here is a photo of the new Delrin Upper Control Arm Bushing set with the new inner sleeves showing the Hardcoat anti-wear coating.

Change to UCA bushings April, '08. In a continuing effort to improve the bushing kit.....

I have made a slight design change and added a grease groove to the I.D. AND O.D. of the UCA bushings. They are pre drilled with two grease passages from the outside to the inside. This is a little insurance in the unlikely event the bushing rotates in the bore of the control arm. The groove on the I.D. helps distribute the grease all around the inner sleeve.

The spiral grooves to distribute the grease in the I. D. have been in the last several sets of bushings

With proper lubrication you should not be able to wear these out!

This is the newly redesigned Delrin Lower Control Arm Bushing set complete with Hardcoated aluminum inner sleeves and stainless steel shimming washers:

This is the UHMW subframe set with .125" and .048" aluminum shimming washers:

Here are the new black anodized aluminum FRONT diff mounts that compensate for severe mounting angles:

Here is an individual breakdown photo showing you how the tapered angles on the diff mount bushings used in conjunction with the tapered washers make up the unlimited choice of mounting angles.

This photo demonstrates how the tapered bushing and tapered washer can be used to create either completely flat mounting surfaces as shown on the bushings on the right, or a severe mounting angle on the bushings on the left, and any infinite angle in-between. The tapered washers have been slightly shifted on the bushings so you can see how the system works. They will assemble in your car in an aligned manner:

And the rear Delrin diff support mount:

This is the new combined grease fitting kit. It consists of a drill, a tap and eight grease fittings.

Here is the breakdown on the individual pricing.

$75.00 Aluminum Front diff supports w/Aluminum shimming washers to set pinion angle

$50.00 Delrin Rear Diff support

$100.00 Complete UHMW IRS Cradle support set including thick and thin aluminum shimming washers

$375.00 Complete Upper and Lower Delrin control arm set including hardcoated aluminum inner sleeves and stainless steel shimming washers. (You get a $10.00 price break buying the complete control arm set)

$110.00 Upper control arm bushings by themselves

$275.00 Lower control arm bushings by themselves

$20.00 Combined UCA & LCA grease fitting kit

Total $595.00 for all of the above items.

Additional optional items available:

$10.00 a pair for 9/16" Grade 8 bolts with nylock nuts and flat washers for the front subframe mounts

$70.00 Tool deposit, fully refundable upon return

$159.00 is the cost for the bumpsteer/upgraded toe link set

$55.00 is the cost of the adjustable sway bar end link kit

$15.00 is the cost for the four piece machinist's angle finder set

Here is a photo of the 9/16" grade 8 front sub-frame bolts and grade 8 nylock nuts:

Pic of removal tools:

These removal tools will make this job INFINITELY easier!

It is HIGHLY recommended to get the tools. There is no longer a rental fee but the deposit and or purchase price is now $70.00 which is fully refundable upon their return.

I've been forced to raise the deposit and outright purchase prices on the tools because so few tool sets are being returned. These tools have become the Achille's heel of this kit as they are a huge PITA for me to make. So I'm hoping more tools will start making their way back to me!

Here is a photo of the rear bumpsteer kit and the upgraded toe links. Toe links are one millimeter larger in diameter than the Ford parts and these are manufactured from high tensile strength material:

Here is a photo of the four piece machininst angle finder set I'm offering for $15.00 to save you the hassle of tracking one down yourself:

Here is a photo of the adjustable sway bar end links:

BUSHING KIT INSTALLATION WITH PHOTOS

Bushing kit FAQ

MY INFORMATIONAL IRS ARTICLE

Here are some additional informational videos that may help you in the disassembly of your IRS.

INFORMATIONAL VIDEOS

PM me for payment info or if you're a new member without PM privledges see my site at: Full Tilt Boogie Racing Homepage or contact me at info@fulltiltboogieracing.com

Bruce

PS I don't always have time to check replies to this thread on a constant basis, so if you're hot for parts or an answer, just drop me a PM. (no visitor messages PLEASE!!)

Last updated 11-9-09

mrbill00 · 02-24-2006, 08:13 AM

ac427cobra, I HAVE been following the thread and i would like to order the following:
$50.00 Front diff supports w/shimming washers
$60.00 Rear Diff support
$94.00 Complete UHMW IRS Cradle support set
.....paypal,check, MO? Great job for the IRS folks!!!!! thxs
/\/\answer to bottom question...dick cheney, she'll be alive but stopped in airports

ac427cobra · 02-24-2006, 12:06 PM

Quote:

Originally Posted by mrbill00

ac427cobra, I HAVE been following the thread and i would like to order the following:
$50.00 Front diff supports w/shimming washers
$60.00 Rear Diff support
$94.00 Complete UHMW IRS Cradle support set
.....paypal,check, MO? Great job for the IRS folks!!!!! thxs
/\/\answer to bottom question...dick cheney, she'll be alive but stopped in airports

mrbill:

PM me and we'll get it handled!

davidsk5018 · 02-26-2006, 10:09 PM

Quote:

Originally Posted by mrbill00

/\/\answer to bottom question...dick cheney, she'll be alive but stopped in airports

Nice...I had to think about that one....

ac427cobra, you have a PM

ac427cobra · 02-26-2006, 10:19 PM

Quote:

Originally Posted by davidsk5018

Nice...I had to think about that one....

ac427cobra, you have a PM

Got it and replied!

mrbill00 · 03-01-2006, 06:36 PM

got mine today...nice work!!! thxs

Juice33 · 03-02-2006, 12:22 PM

I am going to a Level 5 setup later this summer, how importnat is this stuff to have, in other words, will this work really well, really bad, or not make a difference with the Level 5 half shafts?

Thank you.

ac427cobra · 03-02-2006, 12:41 PM

Quote:

Originally Posted by Juice33

I am going to a Level 5 setup later this summer, how importnat is this stuff to have, in other words, will this work really well, really bad, or not make a difference with the Level 5 half shafts?

Thank you.

I'm not familiar with a Level 5 set-up because I'm a road racer type. Isn't the Level 5 stuff for the straight line guys?

For maximum wheel hop reduction, it is imperative you remove ALL rubber from your IRS including the (cradle) sub-frame, control arms and diff mounts.

Just as a warning, the Aluminum front diff mounts can be a little noisy for a daily driver. The other components will increase NVH to a certian degree but not much. The IRS will feel like a completely different unit when you're done with this set!

Hope that helps?

Juice33 · 03-02-2006, 02:01 PM

Quote:

Originally Posted by ac427cobra

I'm not familiar with a Level 5 set-up because I'm a road racer type. Isn't the Level 5 stuff for the straight line guys?

For maximum wheel hop reduction, it is imperative you remove ALL rubber from your IRS including the cradle sub-frame, control arms and diff mounts.

Just as a warning, the Aluminum front diff mounts can be a little noisy for a daily driver. The other components will increase NVH to a certian degree but not much. The IRS will feel like a completely different unit when you're done with this set!

Hope that helps?

It helps, I really like all aspects of racing, I would like to have a versatile enough car to go to the Pocanos, run at auto-x's, and do some dragging too. Maybe I am just dreaming

but I wanted to see if these had been shown to work with the level 5 setup. Reducing wheelhop is reducing wheelhop, right?

ac427cobra · 03-02-2006, 02:06 PM

Quote:

Originally Posted by Juice33

It helps, I really like all aspects of racing, I would like to have a versatile enough car to go to the Pocanos, run at auto-x's, and do some dragging too. Maybe I am just dreaming

but I wanted to see if these had been shown to work with the level 5 setup. Reducing wheelhop is reducing wheelhop, right?

If you tell me what a Level 5 set-up is, I can give you an idea of if or how much this set will improve it?

My wheel hop reduced 90% with this set-up. There is still a tiny but but nothing I can't handle? But then again, I don't drag race at all and only drop the hammer occasionally.

Juice33 · 03-02-2006, 04:53 PM

The level 5 half shafts here: http://www.driveshaftshop.com/MUSTANGC.V..ivnu

That is what I am looking at, I just don't know how well yours will work with it or clash with it. If they will work with it I am in like Flynt.

ac427cobra · 03-02-2006, 05:10 PM

Quote:

Originally Posted by Juice33

The level 5 half shafts here: http://www.driveshaftshop.com/MUSTANGC.V..ivnu

That is what I am looking at, I just don't know how well yours will work with it or clash with it. If they will work with it I am in like Flynt.

Well, if it's just the half shaft they have nothing to do with affecting anything regarding the control arm bushings, diff or cradle mounts.

I have had no durability issues with the Ford '03 halfshaft with the exception of the outer boots. Now that I vent the outer boot on the left side, I don't blow any more boot seals. Granted, I'm a road racer.

The guys that run very high HP straight line cars probably need a heavier halfshaft? I'd like to try a lighter one to tell you the truth!

Juice33 · 03-04-2006, 01:58 PM

I believe these are lighter, they are stronger though. I could be wrong. How long (or how many) more sets do you have? I am going to research this a little more and I might buy your setup.

Thanks for all the help.

ac427cobra · 03-04-2006, 08:03 PM

Quote:

Originally Posted by Juice33

I believe these are lighter, they are stronger though. I could be wrong. How long (or how many) more sets do you have? I am going to research this a little more and I might buy your setup.

Thanks for all the help.

I probably have about 10 sets or so, give or take? They have been moving quite regularly.

Let me know!

neckdemon · 03-05-2006, 12:31 PM

i might be interested in your bushings. if i gave you a deposit and then payed for the balance in a wekk or so would you hold a set for me? or do you have plenty of them in stock?

ac427cobra · 03-05-2006, 12:48 PM

Quote:

Originally Posted by neckdemon

i might be interested in your bushings. if i gave you a deposit and then payed for the balance in a wekk or so would you hold a set for me? or do you have plenty of them in stock?

There is no problem waiting only a week. They aren't going THAT fast!

neckdemon · 03-05-2006, 01:26 PM

Quote:

Originally Posted by ac427cobra

There is no problem waiting only a week. They aren't going THAT fast!

ok cool. i have a question. did you sell a set like this to a memeber named sbc.cobra? i started a thread asking about "the red pill" and curing the wheel-hop of the irs. and he responded saying he bought a full dlerin set-up from a member. he mentioned it was a memeber with a cobr-r so i'm assuming it might have been you. if that's the case, then you can count me in for a set. only one other question. the aluminum will be pretty harsh for a dialy driven car wouldn't it? would i be better off buying everythin but the aluminum and then getting something that a little better for NVH? or do you offer delrin instead of the aluminum?

ac427cobra · 03-05-2006, 01:45 PM

Quote:

Originally Posted by neckdemon

ok cool. i have a question. did you sell a set like this to a memeber named sbc.cobra? i started a thread asking about "the red pill" and curing the wheel-hop of the irs. and he responded saying he bought a full dlerin set-up from a member. he mentioned it was a memeber with a cobr-r so i'm assuming it might have been you. if that's the case, then you can count me in for a set. only one other question. i basically want all the stuff for the irs. are you selling the set-ups for the irs only? i guess that would mean minus the aluminum front diff supports and the front cradle supports? or is all this stuff for the rear? thnx.

Yep, I sold sbc.cobra his set. And yep, that's me!

The complete set (pictured above) includes EVERYTHING for the IRS including aluminum front diff mounts with shimming washers (to set pinion angle) and rear Delrin diff mount replacing the OEM rubber. Upper and lower Delrin control arm bushings and UHMW cradle (sub-frame) mounts. $550.00 delivered for the complete set.

Let me know if you have any more questions?

neckdemon · 03-05-2006, 01:51 PM

ok, sorry to be a pain the ass. but you responded before i could finish editing my post. i'm just a littel concerned about the ride quality with the aluminum diff mounts. do you think they will be suitable for a dily driven cobra? or should i go with everything but the aluminum and just substitute them for delrin or urethane? i just don't want to be driving around on a pogo stick. lol.

ac427cobra · 03-05-2006, 02:05 PM

Quote:

Originally Posted by neckdemon

ok, sorry to be a pain the ass. but you responded before i could finish editing my post. i'm just a littel concerned about the ride quality with the aluminum diff mounts. do you think they will be suitable for a dily driven cobra? or should i go with everything but the aluminum and just substitute them for delrin or urethane? i just don't want to be driving around on a pogo stick. lol.

Ride quality won't change all that drastically. The pogo stick effect was a direct result of the poorly designed and poorly manufactured bushings marketed by the Brand "N" guy.

Precisely why I decided to get into this to prevent others from the pain I went through.

NVH levels will be raised slightly. The greatest offender IS the front Aluminum diff mounts. If you have a car with full interior it won't be too bad? Back seat and carpet block a lot of the noise.

You have to make a decision what you really want out of your car. A quiet soft cushy ride with wheel hop (like Ford delivered to you) or a raised level of NVH with almost complete cure of the dreaded wheel hop? If you have a stereo, turn it up!

You probably won't notice ANY difference in ride or noise while cranking out some AC/DC?

Bruce

PS In addition to your edited post: I will not make a Delrin front diff mount. Road racers get their diffs too hot (like me running 240-250 almost all the time with a diff cooler!) The Delrin might get too soft at those temps (?) and I just don't want to take any chances on anyone having any probelms.

Let me put it to you this way, put the Aluminum front diff mounts in and if you don't like them, take them out. Those front diff mounts are not that hard to change after the fact.

neckdemon · 03-05-2006, 02:58 PM

yeah ok, you're pretty much right. i can deal with a little bit of NVH. especially since i'm usually blasting my radio like you said. one other question, just so i know. i'm assuming that the "cradle" bushings are the same as what has been called "subframe" bushings? just curious because it seems that ford put the wrong size bolts in there. 12mm instead of 14mm. will i be able to install the right size bolts with this set?

ac427cobra · 03-05-2006, 03:16 PM

Quote:

Originally Posted by neckdemon

yeah ok, you're pretty much right. i can deal with a little bit of NVH. especially since i'm usually blasting my radio like you said. one other question, just so i know. i'm assuming that the "cradle" bushings are the same as what has been called "subframe" bushings? just curious because it seems that ford put the wrong size bolts in there. 12mm instead of 14mm. will i be able to install the right size bolts with this set?

Yes. Subframe and cradle = Same-O Same-O. That's why when I call it a cradle, I always have (sub-frame) right behind it in parentheses.

To maximize efficiency of the cradle mounting points, it is highly recommended (as spelled out in the installation instructions) to also get the 14mm bolts (also available from me if you don't have them?) for the front mounting points. The front mounts have a large enough I.D. for the larger 14mm bolt.

neckdemon · 03-05-2006, 03:34 PM

alright. cool. you can count me in for a complete set. you sure you don't need a deposit? i don't want to find out next week that you don't have any left.

ac427cobra · 03-05-2006, 03:38 PM

Quote:

Originally Posted by neckdemon

alright. cool. you can count me in for a complete set. you sure you don't need a deposit? i don't want to find out next week that you don't have any left.

I can assure you it's safe! Send me a PM when you're ready!

JPIStang · 03-05-2006, 04:51 PM

Are you planning on continuing to make these in the future? I simply don't have the money right now but am certainly interested.

I heard the "N" brand bushings were a nightmare. Are yours going to work as well as the MM bushings (as far as installation I mean)?