Questions about 8.8 rear end gears

Smoph · March 6th, 2007, 03:51 PM

HEy all just wanted to run a question by everyone im newish to mustangs and didnt have all the facts straight i have a 1988 mustang LX 5.0 It will be used on the streets only except for the occasional weekend runs down to the race track

The one thing i didnt know for sure was the i heard that if i put in 3.73 gears into my rear end it would create a POSI rear but i didnt know for sure. any help you can shed on the subject would really help

THanKs

HMUSN · March 6th, 2007, 04:20 PM

your ring and pinion (gears ) size doesn't effect that.

homebrewed · March 6th, 2007, 09:08 PM

+1 Gears have no effect on the action of the diff.

For a street car, 3.55's would be my choice. I have 3.73's in mine and it winds WAY too hi at cruise speed.

Auto or Manual?

homebrewed · March 6th, 2007, 09:09 PM

Ok, before I get bombed, the "action" I was referring to is its traction function. Posi, open, LSD, whatever.

Stangzilla · March 6th, 2007, 09:19 PM

If it is a factory 5.0 it has a Trac Loc rear in it. I disagree about the 3.73 gears. I think IMO they are the best street gear for a manual. if you have an auto I would go 4.10. If you are askin about both tires spinning because yours dont then you prob just have worn trac loc clutches in your rear end...

homebrewed · March 6th, 2007, 09:32 PM

+1 on the Trac Loc mention and the 4.10 automatic gears.

89StangGT · March 6th, 2007, 09:45 PM

Originally Posted by homebrewed

+1 Gears have no effect on the action of the diff.

For a street car, 3.55's would be my choice. I have 3.73's in mine and it winds WAY too hi at cruise speed.

Auto or Manual?

are you for real? i daily drive mine with 4.10s and its fine.

Stangzilla · March 6th, 2007, 09:48 PM

In my car in 5th gear at 70mph with 3.73's i am almost at 3000 rpm. In my opinion any more than that is to high of an rpm.

homebrewed · March 6th, 2007, 09:51 PM

Yeah bro. I am beltin around 3K at roughly 65MPH. Maybe its the way the trans is geared. T-5...

Stangzilla · March 6th, 2007, 09:59 PM

I have a Tremec 3550 in my car..

homebrewed · March 6th, 2007, 10:07 PM

I just went and got paced at 65MPH. 3000+RPM in 5th...

Stangzilla · March 6th, 2007, 10:40 PM

Well I am at about 2850 at 70 in 5th. The Tremec has a higher 5th gear than the T-5

Smoph · March 7th, 2007, 01:24 AM

Ya i currently have tremec manual 5 spped tranny W/ a stage 2 king cobra clutch and i was having single tire fire on most burnouts just wasent sure if the gear size of the gear adjusted that

homebrewed · March 7th, 2007, 01:32 AM

Huh???

You lost me bro....

Smoph · March 7th, 2007, 01:36 AM

YA as far as my rear end goes i just waent sure what the problem was and why i wasent have a dual tire fire stangzila kinda covered it with the trac loc issue but ill try the 3.73 and look into gwetting those all taken care of

homebrewed · March 7th, 2007, 01:39 AM

Ahhh... After I read it 3 times I got it. lol

homebrewed · March 7th, 2007, 01:42 AM

Cheap Plug alert!!!

stangzilla is pretty knowledgable. I trust his advice...

But seriously tho, yeah, the dude ain't no slouch. Most of these cats are pretty up on their shit.

Stangzilla · March 7th, 2007, 09:54 AM

Originally Posted by homebrewed

Cheap Plug alert!!!

stangzilla is pretty knowledgable. I trust his advice...

But seriously tho, yeah, the dude ain't no slouch. Most of these cats are pretty up on their shit.

Well I have been know to make mistakes!! But Thanks man.. Try to help when I can...

89StangGT · March 7th, 2007, 11:38 AM

i have a tremec in my car and with 4.10s and a 28 tall tire at 70 mph im at like 2800.

Iwannagofast · March 7th, 2007, 12:42 PM

ill have to agree with the people knowing thier stuff on this site.......i have only been on here a few weeks and i have asked my share of questions and i have learned a lot.

one thing i dont think that got mentioned was the site where you can get a rebuild kit for the trac loc limited slip..

http://www.fordracingparts.com/parts...tKeyField=6942

and thats the carbon disc kit....you can get the basic one too

i say its worth it for the 60 extra dollars or so.

March 6th, 2007, 03:51 PM	#1
Smoph Newbie Join Date: Mar 2007 Posts: 26 iTrader: 0 reviews	Questions about 8.8 rear end gears HEy all just wanted to run a question by everyone im newish to mustangs and didnt have all the facts straight i have a 1988 mustang LX 5.0 It will be used on the streets only except for the occasional weekend runs down to the race track The one thing i didnt know for sure was the i heard that if i put in 3.73 gears into my rear end it would create a POSI rear but i didnt know for sure. any help you can shed on the subject would really help THanKs

March 6th, 2007, 04:20 PM	#2
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	your ring and pinion (gears ) size doesn't effect that. __________________

March 6th, 2007, 09:19 PM	#5
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,298 iTrader: 0 reviews	If it is a factory 5.0 it has a Trac Loc rear in it. I disagree about the 3.73 gears. I think IMO they are the best street gear for a manual. if you have an auto I would go 4.10. If you are askin about both tires spinning because yours dont then you prob just have worn trac loc clutches in your rear end... __________________ Rotating The Earth 1320 Feet At A Time!! Today, I found out that when I masturbate at night while watching internet porn I cast a huge shadow on the curtain and the entire street is able to see it.

March 6th, 2007, 09:48 PM	#8
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,298 iTrader: 0 reviews	In my car in 5th gear at 70mph with 3.73's i am almost at 3000 rpm. In my opinion any more than that is to high of an rpm. __________________ Rotating The Earth 1320 Feet At A Time!! Today, I found out that when I masturbate at night while watching internet porn I cast a huge shadow on the curtain and the entire street is able to see it.

March 6th, 2007, 09:59 PM	#10
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,298 iTrader: 0 reviews	I have a Tremec 3550 in my car.. __________________ Rotating The Earth 1320 Feet At A Time!! Today, I found out that when I masturbate at night while watching internet porn I cast a huge shadow on the curtain and the entire street is able to see it.

March 6th, 2007, 10:40 PM	#12
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,298 iTrader: 0 reviews	Well I am at about 2850 at 70 in 5th. The Tremec has a higher 5th gear than the T-5 __________________ Rotating The Earth 1320 Feet At A Time!! Today, I found out that when I masturbate at night while watching internet porn I cast a huge shadow on the curtain and the entire street is able to see it.

March 7th, 2007, 01:24 AM	#13
Smoph Newbie Join Date: Mar 2007 Posts: 26 iTrader: 0 reviews	Ya i currently have tremec manual 5 spped tranny W/ a stage 2 king cobra clutch and i was having single tire fire on most burnouts just wasent sure if the gear size of the gear adjusted that

March 7th, 2007, 11:38 AM	#19
89StangGT Moderator SVT Cobra Mustang Join Date: Aug 2006 Location: Toledo, Ohio Posts: 1,876 iTrader: 0 reviews	i have a tremec in my car and with 4.10s and a 28 tall tire at 70 mph im at like 2800. __________________ There's a reason Ford codenamed them the Terminator

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