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Old 03-16-2013, 06:37 PM   #1
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LSDs for v6

I was curious if anyone knew of an cars that came stock with 7.5in LSD that
I can swap out with my stock differential in my car. Since ford racing stopped selling their t-lok differential the only one I know you can buy now is the Auburn one off of American Muscle. I have a 1998 v6 by the way.
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Old 03-16-2013, 06:42 PM   #2
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I'm sure you could find the 9in rear from a u-pull-it near you, that's one of the things I'm looking into for my next mod. a 9in from a mach comes with a LSD in it i believe, but I dont know of any stock 7.5in LSDs
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Old 03-16-2013, 06:46 PM   #3
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8.8s have LSD and they're much stronger than the 7.5. If you're going to do all the work of putting an LSD in a 7.5, just buy an 8.8 and gears
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Old 03-16-2013, 06:56 PM   #4
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how much would a 8.8 from a salvage yard cost? and i just figured they'd be kinda hard to find bcause around here the junkyards pull valuable parts and sell them or the towing company does idk about where you guys live.
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Old 03-16-2013, 07:10 PM   #5
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Well since you have a 94-98 car your in luck...some v8 thunderbirds and lincoln mark viii's rearends may bolt up. IIRC there might be some 2wd rangers out there that have 8.8" rears too that will fit...not the 4x4 models though since the axle shafts are offset for the transfer case.

Normally, I'd tell you to think about how much you're going to mod the car before modifying the rearend.

A 7.5" with an upgraded tlok and some gears would be enough for a bolt ons v6, while an upgrade to an 8.8" would be wise if you're going FI or building her up. But since 7.5" FRPP tloks are hard to find (some may still be available at JEGS through Ebay), the 8.8" probably our only option.

I would say if you can find a used 8.8" at a junk yard for cheap then get it. Keep in mind when buying one that you're most likely going to want to rebuild it anyways and possibly throw in taller gears, so don't pay a **** ton for the core unit...expect to spend at least 90 on a differential rebuild kit. If you want taller gears that's another ~180 plus misc items, friction modifier, quad shocks etc.
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Old 03-16-2013, 07:12 PM   #6
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It depends on what the junkyard wants to sell it for most of the time, some parts I've seen here in Alabama have been way less that what they were in North Carolina. It's all about the cost of living
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Old 03-16-2013, 07:18 PM   #7
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Yah and availability...there are zero 99-04 GT's at any salvage yards up here. Mostly old crap that's beyond repair and people still think it's made of gold.

If I had a 94-98 model with the shorter wheel base I'd be set...there are diffs and suspension components for them all day, guess my 03's just too new lol.
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Old 03-16-2013, 07:42 PM   #8
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I'm it planning on doing any FI or blown engine unless I came across some deal I couldn't pass up. But I do have a budget which is my main reason for asking. And I was planning on some 4.10 gears since its easy to install them why it's all taken off then to wait.
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Old 03-16-2013, 07:48 PM   #9
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Quote:
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I was curious if anyone knew of an cars that came stock with 7.5in LSD that
I can swap out with my stock differential in my car. Since ford racing stopped selling their t-lok differential the only one I know you can buy now is the Auburn one off of American Muscle. I have a 1998 v6 by the way.
LSD come stock with the 8.8 rears not the 7.5 for the v6 so you would need to buy one from AM. It would be much easier and possibly cheaper to just buy a used 8.8 rear from a salvage yard.
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Old 03-16-2013, 07:54 PM   #10
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Well imo modifying your rearend is like suspension...spending more than what's needed to get by might be hard to swallow but it'll benefit you and the car in the long run.

Some will say simply bolting up a used rearend and bleachin the tires is fine, and it certainly may be, but for how long? You don't truly know the condition of the used rearend unless you buy it from someone who had the car it came out of or you actually crack it open.

If you're on a budget I'd suggest finding a used 8.8", buy a new set of gears and a differential rebuild kit. If you can't swing all of it at one time save up and buy as you can. When you have everything you need rebuild, re-calibrate and install.

Better to do it right the first time and be able to enjoy it and not have your car up on the lift a month later because your rearend blew out.
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Old 03-16-2013, 07:56 PM   #11
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Quote:
Originally Posted by sonicpony03 View Post
Well imo modifying your rearend is like suspension...spending more than what's needed to get by might be hard to swallow but it'll benefit you and the car in the long run.

Some will say simply bolting up a used rearend and bleachin the tires is fine, and it certainly may be, but for how long? You don't truly know the condition of the used rearend unless you buy it from someone who had the car it came out of or you actually crack it open.

If you're on a budget I'd suggest finding a used 8.8", buy a new set of gears and a differential rebuild kit. If you can't swing all of it at one time save up and buy as you can. When you have everything you need rebuild, re-calibrate and install.

Better to do it right the first time and be able to enjoy it and not have your car up on the lift a month later because your rearend blew out.
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Old 03-16-2013, 10:40 PM   #12
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Well imo modifying your rearend is like suspension...spending more than what's needed to get by might be hard to swallow but it'll benefit you and the car in the long run.

Some will say simply bolting up a used rearend and bleachin the tires is fine, and it certainly may be, but for how long? You don't truly know the condition of the used rearend unless you buy it from someone who had the car it came out of or you actually crack it open.

If you're on a budget I'd suggest finding a used 8.8", buy a new set of gears and a differential rebuild kit. If you can't swing all of it at one time save up and buy as you can. When you have everything you need rebuild, re-calibrate and install.

Better to do it right the first time and be able to enjoy it and not have your car up on the lift a month later because your rearend blew out.
you make a solid point. I just wanted to know because i didn't really want to spend $400 plus on a differential if there was a cheaper and better alternative such as pulling one and rebuilding. I'm just not to familiar with cars that have similar rearends as the mustangs.
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Old 03-17-2013, 12:11 PM   #13
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Almost all ford rangers that have a 7.5 rear end have a tlok in it that can be swapped into your rear end. Find a ranger and get the diff out of it and buy a tlok clutch kit and voila you have a t lok
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Old 03-17-2013, 01:41 PM   #14
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Almost all ford rangers that have a 7.5 rear end have a tlok in it that can be swapped into your rear end. Find a ranger and get the diff out of it and buy a tlok clutch kit and voila you have a t lok
Yah this could definitely work just make sure the ranger is a 2wd model...the 4wd ones have offset axle shafts that rearend won't work under your car.

As I said before if you don't plan on any extreme power mods like FI or built engines the 7.5" will be fine. A bolt ons v6 is not going to shatter the spider gear inside the differential.
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Old 03-17-2013, 04:25 PM   #15
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Is the Detroit tru trac not made anymore?
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Old 03-17-2013, 07:04 PM   #16
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I thought I had heard the rangers had tlok. Shouldn't be to hard to find a ranger at a salvage yard.

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Is the Detroit tru trac not made anymore?
I've never heard of this one before.
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Old 03-17-2013, 09:21 PM   #17
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http://www.summitracing.com/search/D...roit-Truetrac/

This is what I have
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Old 03-17-2013, 10:19 PM   #18
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Is the Detroit tru trac not made anymore?
Yah it is and so is the Auburn but most guys aren't willing nor do they want to drop ~$400 on a differential. The FRPP Tlok was ~$200 and worked great in the 7.5" rears.
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Old 03-17-2013, 10:54 PM   #19
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I may be ordering this soon.....

Ford Mustang Ford Racing LOK Limited Slip Differential by Ford Racing

---------- Post added at 10:54 PM ---------- Previous post was at 10:51 PM ----------

who loves me?

lol
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Old 03-17-2013, 11:23 PM   #20
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I may be ordering this soon.....

Ford Mustang Ford Racing LOK Limited Slip Differential by Ford Racing

---------- Post added at 10:54 PM ---------- Previous post was at 10:51 PM ----------

who loves me?

lol
sorry to disappoint but these are discontinued!
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Old 03-17-2013, 11:25 PM   #21
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did you actually go to the site? because it doesnt say they are



Besides that, i know they are discontinued, thats why pretty much no-one sells them anymore. But just like with anything that gets discontinued, theres always someone who still has some.
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Old 03-18-2013, 08:01 AM   #22
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Yah it is and so is the Auburn but most guys aren't willing nor do they want to drop ~$400 on a differential. The FRPP Tlok was ~$200 and worked great in the 7.5" rears.
Yeah the tlok is only good for so much power and I need something stronger with my setup.
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Old 03-18-2013, 08:05 AM   #23
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did you actually go to the site? because it doesnt say they are

Besides that, i know they are discontinued, thats why pretty much no-one sells them anymore. But just like with anything that gets discontinued, theres always someone who still has some.
I'd call and find out then ^_^
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Old 03-18-2013, 08:11 AM   #24
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It depends on what the junkyard wants to sell it for most of the time, some parts I've seen here in Alabama have been way less that what they were in North Carolina. It's all about the cost of living
Down here in mobile we've got about 4 gt's at the pull-a-part., with the rear ends still intact. Depending on how close you are , you might want to look it up.
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Old 03-18-2013, 08:37 AM   #25
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How much to get one out?
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Old 03-18-2013, 09:52 AM   #26
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What? I'm down here in Louisiana mustangs sell like hot cakes.
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Old 03-18-2013, 09:55 AM   #27
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How much to get one out?
This should help you out
http://www.pullapart.com/mobile/pricing.aspx
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Old 04-10-2013, 05:29 PM   #28
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I think I'm going to just get the auburn LSD because the 7.5 will hold up to a n/a engine with a lot of mods. Where is the cheapest place to get the auburn?
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Old 04-10-2013, 05:31 PM   #29
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I just picked up a Eaton LSD myself.

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Old 04-10-2013, 05:47 PM   #30
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How much was it and are they just as good as auburn?
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Old 04-10-2013, 08:51 PM   #31
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How much was it and are they just as good as auburn?
It was $550 total. IMO I think they r better cause they dont have clutch packs to wear out.
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Old 04-10-2013, 09:06 PM   #32
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Just for the diff. That's pretty pricey
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Old 04-10-2013, 09:24 PM   #33
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Just for the diff. That's pretty pricey
Well and auburn LSD is close to $500 as well.
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Old 04-10-2013, 09:33 PM   #34
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Yeah I know. I've been searching all day for a cheaper alternative. I really need to make a trip to the junkyard and see what they have.
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Old 04-10-2013, 11:15 PM   #35
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Yeah I know. I've been searching all day for a cheaper alternative. I really need to make a trip to the junkyard and see what they have.
You can always go with new Tlok unit.
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