# My Build Thread LS1/FD Its Fast!

**URL:** <https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409>\
**Category:** Builds\
**Created:** [February 17, 2010, 12:00pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409 "2010-02-17T12:00:14Z")\
**Posts on this page:** 20\
**Page:** 46

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**Author:** ![brent\_strong](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/brent_strong/32/7203_2.png) [@brent\_strong](https://forums.speedlife.net/u/brent_strong)\
**Post date:** [June 12, 2010, 4:57pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/901 "2010-06-12T16:57:06Z")

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> [@cougarspeed](#):
>
> Yeah i know and I am trying to find out if he still is but I am having no luck. Find me the guy damnit!

Samberg Rod and Custom. The guy I referred you to originally…either of his rear subframes would have helped you a TON.

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**Author:** ![Carnut](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/carnut/32/7590_2.png) [@Carnut](https://forums.speedlife.net/u/Carnut)\
**Post date:** [June 12, 2010, 5:08pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/902 "2010-06-12T17:08:14Z")

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> [@cougarspeed](#):
>
> hahaha i know! Honestly the 11.8 was a very easy shakedown run. I am super stoked on that time for how easy i drove it and being untuned!!! STOKED!
> 
> I am going to wrench monday and think I am going to swap to a ford IRS that I will probably still explode.

11.8 is moving. I’m just busting your balls. Good luck moving forward.

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**Author:** ![cougarspeed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cougarspeed/32/7468_2.png) [@cougarspeed](https://forums.speedlife.net/u/cougarspeed)\
**Post date:** [June 12, 2010, 5:11pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/903 "2010-06-12T17:11:38Z")

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> [@brent\_strong](#):
>
> Samberg Rod and Custom. The guy I referred you to originally…either of his rear subframes would have helped you a TON.

Ummm yeah im sure you are trying to enjoy an i told you so moment but #1 I had no wheelhop whatsoever and #2 I Promise dead hooking on slicks would have blown a stock diff even using their cradle. Anyone can suggest a 3k solution suck as the the ford 8.8" conversion I am now going to do…but I feel better knowing I blew up the stock one first.

> [@Carnut](#):
>
> 11.8 is moving. I’m just busting your balls. Good luck moving forward.

I know you are sweetie. Going to order everything for the ford swap monday.

If anyone knows of a IRS cobra diff FS please let me know.

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**Author:** ![brent\_strong](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/brent_strong/32/7203_2.png) [@brent\_strong](https://forums.speedlife.net/u/brent_strong)\
**Post date:** [June 12, 2010, 5:16pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/904 "2010-06-12T17:16:42Z")

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Hey, do what you want. You ignore my advice anyway. I don’t know why I even bother.

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**Author:** ![cougarspeed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cougarspeed/32/7468_2.png) [@cougarspeed](https://forums.speedlife.net/u/cougarspeed)\
**Post date:** [June 12, 2010, 5:19pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/905 "2010-06-12T17:19:34Z")

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> [@brent\_strong](#):
>
> Hey, do what you want. You ignore my advice anyway. I don’t know why I even bother.

I will continue to ignore shitty advice. A samberg cradle would have been a WASTE of money. It was not and is still not worth money to make UPGRADES based on keeping the STOCK REAR in there. That is the dumbest shit i have ever fucking heard. Now that it is done I am going to a real solution using the ford 8.8" IRS setup. Still weak but a far better solution then throwing money at trying to preserve factory ones. You act like they dont break when people use that subframe hahaha. Get over it your “advice” is not gold.

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**Author:** ![LZ1](https://avatars.discourse-cdn.com/v4/letter/l/7ab992/32.png) [@LZ1](https://forums.speedlife.net/u/LZ1)\
**Post date:** [June 12, 2010, 5:28pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/906 "2010-06-12T17:28:30Z")

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Bro if you had ABS this wouldn’t have happened…

just sayin

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**Author:** ![cougarspeed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cougarspeed/32/7468_2.png) [@cougarspeed](https://forums.speedlife.net/u/cougarspeed)\
**Post date:** [June 12, 2010, 5:33pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/907 "2010-06-12T17:33:36Z")

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LOL

Srsly guys I had all intentions of exploding the factory rear. It is not a big deal at all. looking forward to see if the 8.8" can handle my abuse. Once I have the conversion axles and driveshaft I will probably try to get a spare. Don’t want down time 🙂

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**Author:** ![Studderin](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/studderin/32/7197_2.png) [@Studderin](https://forums.speedlife.net/u/Studderin)\
**Post date:** [June 12, 2010, 5:41pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/908 "2010-06-12T17:41:10Z")

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install the wheelies, don’t them come in the Trex box???

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**Author:** ![sobo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sobo/32/5267_2.png) [@sobo](https://forums.speedlife.net/u/sobo)\
**Post date:** [June 12, 2010, 5:45pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/909 "2010-06-12T17:45:04Z")

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Self. Tapers.

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**Author:** ![cougarspeed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cougarspeed/32/7468_2.png) [@cougarspeed](https://forums.speedlife.net/u/cougarspeed)\
**Post date:** [June 12, 2010, 6:02pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/910 "2010-06-12T18:02:44Z")

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> [@Studderin](#):
>
> install the wheelies, don’t them come in the Trex box???

You stole them! Good seeing ya last night.

> [@sobo](#):
>
> Self. Tapers.

Fix. Everything.

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**Author:** ![BlkKnight099](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/blkknight099/32/5276_2.png) [@BlkKnight099](https://forums.speedlife.net/u/BlkKnight099)\
**Post date:** [June 12, 2010, 6:20pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/911 "2010-06-12T18:20:38Z")

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What a sick build. I didn’t even know you were doing this. Great job. Looks awesome.

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**Author:** ![harvboi05](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/harvboi05/32/5124_2.png) [@harvboi05](https://forums.speedlife.net/u/harvboi05)\
**Post date:** [June 12, 2010, 8:21pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/912 "2010-06-12T20:21:07Z")

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8.8 will handle whatever you got as long as you dont have any rubber bushings. tons of 03/04 cobra dudes cut 1.5s in IRS but with badass bushings, with a ton more weight too. did you weigh that thing when you were at the track?

that thing is the best looking car ever with the best motor ever. \< yup, i just said that.

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**Author:** ![cougarspeed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cougarspeed/32/7468_2.png) [@cougarspeed](https://forums.speedlife.net/u/cougarspeed)\
**Post date:** [June 13, 2010, 5:05pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/913 "2010-06-13T17:05:35Z")

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> [@BlkKnight099](#):
>
> What a sick build. I didn’t even know you were doing this. Great job. Looks awesome.

Thanks man. Come check it out sometime.

> [@harvboi05](#):
>
> 8.8 will handle whatever you got as long as you dont have any rubber bushings. tons of 03/04 cobra dudes cut 1.5s in IRS but with badass bushings, with a ton more weight too. did you weigh that thing when you were at the track?
> 
> that thing is the best looking car ever with the best motor ever. \< yup, i just said that.

Car weighs ~2700 at the track 🙂 I am looking to get it to ~2600 lol. Thanks for the compliment I am super in love with how the car is coming together.

So here is what I am ordering tomorrow.  
Ford 8.8" IRS  
Ford inner axle stubs  
DSS Axles for the conversion :ballin:  
[http://www.driveshaftshop.com/pdetail.php?pid=134](http://www.driveshaftshop.com/pdetail.php?pid=134)  
DSS custom driveshaft  
The following are to rebuild the diff:

> **[Ford Performance Parts M-4700-C Ford Performance Parts 8.8 in. Traction-Lok...](https://www.summitracing.com/parts/FMS-M-4700-C/)**
>
> Free Shipping - Ford Performance Parts 8.8 in. Traction-Lok Rebuild Kits with qualifying orders of $109. Shop Differential Carrier Rebuild Kits and Spider Gears at Summit Racing.

> **[Ford Performance Parts M-4413-A Ford Performance Parts 8.8 in. IRS Bearing...](https://www.summitracing.com/parts/FMS-M-4413-A/)**
>
> Free Shipping - Ford Performance Parts 8.8 in. IRS Bearing and Seal Kits with qualifying orders of $109. Shop Axle Bearings at Summit Racing.

> **[Ford Performance Parts M-4210-B Ford Performance Parts Ring and Pinion...](https://www.summitracing.com/parts/FMS-M-4210-B/)**
>
> Free Shipping - Ford Performance Parts Ring and Pinion Installation Kits with qualifying orders of $109. Shop Ring and Pinion Gear Installation Kits at Summit Racing.

bushings from these guys

> **[Cobra Mustang IRS Delrin/UHMW/Alum bushing kit w/adj. sway bar links &...](https://www.svtperformance.com/threads/cobra-mustang-irs-delrin-uhmw-alum-bushing-kit-w-adj-sway-bar-links-bumpsteer-kit.260665/)**
>
> Greetings Fellow Stangers:
> 
> Congratulations. You've just discovered the finest Mustang Cobra IRS bushing kit available on the market today.
> 
> I can tell you two things. #1 If you are changing your car from completely stock to this set-up, you will...

Samberg 8.8" cradle  
 ![http://i286.photobucket.com/albums/ll93/justinsamberg/DSC_0031.jpg](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/3X/a/2/a2c4e53c98912c9d7fb6851ce032e0574ed521d2.jpeg)  
Either 4.10 or 4.30 gears as well. Not sure yet.

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<div class="post-metadata">

**Author:** ![Gl1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gl1/32/5471_2.png) [@Gl1](https://forums.speedlife.net/u/Gl1)\
**Post date:** [June 13, 2010, 5:59pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/914 "2010-06-13T17:59:59Z")

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What’s the cobra IRS made of? I know the 8.8 IRS in my Mark 8 is aluminum which saves a bit of weight, and they should be cheaper than one out of a cobra just because it’s not out of a cobra.

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**Author:** ![BlkKnight099](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/blkknight099/32/5276_2.png) [@BlkKnight099](https://forums.speedlife.net/u/BlkKnight099)\
**Post date:** [June 13, 2010, 6:05pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/915 "2010-06-13T18:05:37Z")

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Where are you living now?

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**Author:** ![cougarspeed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cougarspeed/32/7468_2.png) [@cougarspeed](https://forums.speedlife.net/u/cougarspeed)\
**Post date:** [June 13, 2010, 6:14pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/916 "2010-06-13T18:14:53Z")

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> [@Gl@re](#):
>
> What’s the cobra IRS made of? I know the 8.8 IRS in my Mark 8 is aluminum which saves a bit of weight, and they should be cheaper than one out of a cobra just because it’s not out of a cobra.

Yeah I am actually going to swap in a Mark 8 or T-bird rear. It is just known as the “cobra” diff swap. Thats why i said ford irs rear. Its amazing how similar they are and yet the mark 8 and t-bird ones are wayyyyyy cheaper. I believe they are 28 spline and the mustang ones are 31. T-bird ones are iron.

> [@BlkKnight099](#):
>
> Where are you living now?

North Buffalo parkside area.

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<div class="post-metadata">

**Author:** ![Gl1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gl1/32/5471_2.png) [@Gl1](https://forums.speedlife.net/u/Gl1)\
**Post date:** [June 13, 2010, 7:47pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/917 "2010-06-13T19:47:05Z")

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One thing to watch out for with the Mark VIII IRS is none of them came with a trac-lok, because of the traction control, so you have to get a trac-lok assembly like this [http://supercoupeperformance.com/partBrowser.aspx?partId=599](http://supercoupeperformance.com/partBrowser.aspx?partId=599) [Supercoupeperformance.com](http://Supercoupeperformance.com) is a pretty good place to get 8.8 IRS stuff.

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**Author:** ![cougarspeed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cougarspeed/32/7468_2.png) [@cougarspeed](https://forums.speedlife.net/u/cougarspeed)\
**Post date:** [June 13, 2010, 8:15pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/918 "2010-06-13T20:15:01Z")

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“Many V8 Tbirds/Cougars from '91-97…check your axle code on the door and use a Ford shop manual to decode if you have a TL installed or not.”

This is what I am going after. There is a tab on there and it tell you if is has LSD and the gear in it. The dif with LSD is typically under $200. Too bad the rest of the shit I need is so expensive. But the point of me doing this is to get to something that is much harder to break and once I have all the conversion pieces it will be cheap any time I do break it. Same reason for an ls1 swap too actually haha. Thanks for looking out though! I will see ya at the track soon. 🙂

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**Author:** ![cougarspeed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cougarspeed/32/7468_2.png) [@cougarspeed](https://forums.speedlife.net/u/cougarspeed)\
**Post date:** [June 14, 2010, 1:41pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/919 "2010-06-14T13:41:23Z")

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Just went and got a diff. Didn’t want to spend hours and hours to save a few bux so I grabbed one of the open diffs then ordered all the rebuild stuff above, track-lok lsd, and am still on the fence for gears.

Everything has been ordered minus gears which i will think about and order tomorrow morning. So I should have the diff to a shop to be build within the next 3-5 days then hopefully they don’t take long and i can get this shit all in the car!

Now that I have all the big ticket items I can blow these up at will haha the actual center section is only about $100

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**Author:** ![theblue](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/theblue/32/5074_2.png) [@theblue](https://forums.speedlife.net/u/theblue)\
**Post date:** [June 14, 2010, 1:52pm UTC](https://forums.speedlife.net/t/my-build-thread-ls1-fd-its-fast/79409/920 "2010-06-14T13:52:58Z")

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so is this build approaching newman land, or did you manage to keep it somewhat easy on the wallet?

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