Would i be fine with a 7.5 differential

ablainec · August 23rd, 2011, 04:05 PM

Only looking to make 250-260 hp with future turbo. Would a 7.5 differential be strong enough for this power or would it be best to go with 8.8 right off the bat.

mustangmike! · August 23rd, 2011, 04:46 PM

I blew my 7.5 w/ stock power
some have taken the 7.5 to 300-400 hp or more.

I mean it would be stupid to keep it stock with that power, you'd want to put a posi in it and some gears ...

But other then that it would really depend on how you drive it. So on that note, yes It *could* be fine for that much power

And btw, I cant remember, are you a auto or manual ?

ablainec · August 23rd, 2011, 05:15 PM

manual, i would just rather be safe than sorry and pay a little more the first time so nothing happens. fast-reliable no cheap

mustangmike! · August 23rd, 2011, 06:34 PM

how deep are your pockets then ?

ablainec · August 23rd, 2011, 07:51 PM

What would be the difference in price between 7.5 and 8.8

GreenMustang00 · August 23rd, 2011, 08:18 PM

Usually you can find an 8.8 for 150 bucks on craigslist.. then throw gears in it.

mcqueen · August 23rd, 2011, 09:17 PM

Originally Posted by GreenMustang00

Usually you can find an 8.8 for 150 bucks on craigslist.. then throw gears in it.

This. Because it already has a tlok.

mustangmike! · August 23rd, 2011, 09:20 PM

parts + install close to the same

8.8 should hold up better though

JTs03v6 · August 23rd, 2011, 09:56 PM

You dont have to swap the 7.5 right off the bat before you start to mod, I didnt. I run the stock unit for a good 4 months before I put the detroit locker in it.

Put the power mods on it first and go from there.

ablainec · August 24th, 2011, 01:09 AM

Will I need anything besides the 8.8 and gears to have it put on?

6ER THEN I 8ER! · August 24th, 2011, 01:47 AM

Originally Posted by ablainec

Will I need anything besides the 8.8 and gears to have it put on?

recalibration for the gears...but besides that it's a straight swap

2000stallion · August 24th, 2011, 08:44 AM

Originally Posted by 6ER THEN I 8ER

recalibration for the gears...but besides that it's a straight swap

and its super easy

Jetflo · August 24th, 2011, 12:13 PM

I did not see two things mentioned here:

1. 8.8 weighs about 70lbs more
2. 7.5 and 8.8 differ only in the pumpkin, axles and shafts are identical

Either axle has its advantages. The 7.5 will take a lot of power if you don't drive like Ace Ventura, Pet Detective. An 8.8 can take more power but adds weight.

The choice is yours . . .

ablainec · August 24th, 2011, 12:16 PM

im not drag racing, so ill take the 8.8. I found this one, if its not the correct one i need what am i looking for? Ford 8.8 Trak-Lok Differential Unit | eBay

ablainec · August 24th, 2011, 12:30 PM

or 28 SPLINE FORD 8.8 POSI TRACTION LOK DIFFERENTIAL AXLE | eBay

Jetflo · August 24th, 2011, 12:42 PM

To use that 8.8 TLok you will need to get an 8.8 axle assembly. What you saw on ebay is the correct part for Mustangs that came with 8.8 rear ends.

I'm not sure why you'd pick the 8.8 if you are not drag racing. Its main advantage is being able to launch more brutally without breaking. In street use, the extra weight just requires more gas to move and makes it harder for the suspension to keep the rear tires on the ground.

Google "unsprung weight" to learn more about how it affects a car's handling.

Loki · August 24th, 2011, 12:43 PM

Neither one is correct. The second is just the tlok & I think the first is, too..

Your best bet is either junkyards or craigslist. A rear end is not something you want to order as shipping will have your wallet's ribs touching it's spine. Lol

ReverendDexter · August 24th, 2011, 12:43 PM

If you're not drag racing, that's more reason to stick with the 7.5, not to go 8.8.

ESG-642T · August 24th, 2011, 04:19 PM

Originally Posted by Jetflo

I did not see two things mentioned here:

1. 8.8 weighs about 70lbs more
2. 7.5 and 8.8 differ only in the pumpkin, axles and shafts are identical

Either axle has its advantages. The 7.5 will take a lot of power if you don't drive like Ace Ventura, Pet Detective. An 8.8 can take more power but adds weight.

The choice is yours . . .

8.8 can't be 70lbs more...

Loki · August 24th, 2011, 04:28 PM

^ I was thinking the same thing. I think it's more in the 30-50 range.. From what I've heard, anyway..

August 23rd, 2011, 04:05 PM	#1
ablainec Regular 2004 Mustang v6 Join Date: May 2011 Location: Boise Posts: 57 iTrader: 0 reviews	Would i be fine with a 7.5 differential Only looking to make 250-260 hp with future turbo. Would a 7.5 differential be strong enough for this power or would it be best to go with 8.8 right off the bat.

August 23rd, 2011, 04:46 PM	#2
mustangmike! I Post Entirely Way Too Much 2004,1994,1967 14.37 @ 96 Join Date: Aug 2008 Location: Texas Posts: 6,018 iTrader: 1 reviews	I blew my 7.5 w/ stock power some have taken the 7.5 to 300-400 hp or more. I mean it would be stupid to keep it stock with that power, you'd want to put a posi in it and some gears ... But other then that it would really depend on how you drive it. So on that note, yes It could be fine for that much power And btw, I cant remember, are you a auto or manual ? __________________ 227whp N/A V6 Now w/ 8th Mile 8s ! How To Jmod Your Late Model 4R70W

August 23rd, 2011, 06:34 PM	#4
mustangmike! I Post Entirely Way Too Much 2004,1994,1967 14.37 @ 96 Join Date: Aug 2008 Location: Texas Posts: 6,018 iTrader: 1 reviews	how deep are your pockets then ? __________________ 227whp N/A V6 Now w/ 8th Mile 8s ! How To Jmod Your Late Model 4R70W

August 23rd, 2011, 08:18 PM	#6
GreenMustang00 1 Wheel Peel 2000 Mustang 393w 2001 Mustang GT Vert Join Date: Mar 2010 Location: Wisconsin Posts: 3,583 iTrader: 4 reviews	Usually you can find an 8.8 for 150 bucks on craigslist.. then throw gears in it. __________________ 2000 393w Swapped Vert 2001 GT Vert 2002 Six Banger

August 23rd, 2011, 09:20 PM	#8
mustangmike! I Post Entirely Way Too Much 2004,1994,1967 14.37 @ 96 Join Date: Aug 2008 Location: Texas Posts: 6,018 iTrader: 1 reviews	parts + install close to the same 8.8 should hold up better though __________________ 227whp N/A V6 Now w/ 8th Mile 8s ! How To Jmod Your Late Model 4R70W

August 23rd, 2011, 05:15 PM	#3
ablainec Regular 2004 Mustang v6 Join Date: May 2011 Location: Boise Posts: 57 iTrader: 0 reviews	manual, i would just rather be safe than sorry and pay a little more the first time so nothing happens. fast-reliable no cheap

August 23rd, 2011, 07:51 PM	#5
ablainec Regular 2004 Mustang v6 Join Date: May 2011 Location: Boise Posts: 57 iTrader: 0 reviews	What would be the difference in price between 7.5 and 8.8

August 23rd, 2011, 09:56 PM	#9
JTs03v6 Hardcore Enthusiast 2003 mustang 7.48x1.56=11.67 Join Date: Sep 2009 Location: East Coast Posts: 2,318 iTrader: 0 reviews	You dont have to swap the 7.5 right off the bat before you start to mod, I didnt. I run the stock unit for a good 4 months before I put the detroit locker in it. Put the power mods on it first and go from there. __________________ New combo: Forged SC short Block,280cfm heads, Precision 6262 turbo, cx 31x12x3 fmic http://photobucket.com/JTsTurboBuild http://youtube.com/user/JTsStang

August 24th, 2011, 01:09 AM	#10
ablainec Regular 2004 Mustang v6 Join Date: May 2011 Location: Boise Posts: 57 iTrader: 0 reviews	Will I need anything besides the 8.8 and gears to have it put on?

August 24th, 2011, 12:13 PM	#13
Jetflo Regular 2001 3.8L w/ 5spd Join Date: Aug 2010 Location: California Posts: 198 iTrader: 0 reviews	I did not see two things mentioned here: 1. 8.8 weighs about 70lbs more 2. 7.5 and 8.8 differ only in the pumpkin, axles and shafts are identical Either axle has its advantages. The 7.5 will take a lot of power if you don't drive like Ace Ventura, Pet Detective. An 8.8 can take more power but adds weight. The choice is yours . . . __________________ Are you absolutely certain you're not pregnant?

August 24th, 2011, 12:16 PM	#14
ablainec Regular 2004 Mustang v6 Join Date: May 2011 Location: Boise Posts: 57 iTrader: 0 reviews	im not drag racing, so ill take the 8.8. I found this one, if its not the correct one i need what am i looking for? Ford 8.8 Trak-Lok Differential Unit \| eBay

August 24th, 2011, 12:30 PM	#15
ablainec Regular 2004 Mustang v6 Join Date: May 2011 Location: Boise Posts: 57 iTrader: 0 reviews	or 28 SPLINE FORD 8.8 POSI TRACTION LOK DIFFERENTIAL AXLE \| eBay

August 24th, 2011, 12:42 PM	#16
Jetflo Regular 2001 3.8L w/ 5spd Join Date: Aug 2010 Location: California Posts: 198 iTrader: 0 reviews	To use that 8.8 TLok you will need to get an 8.8 axle assembly. What you saw on ebay is the correct part for Mustangs that came with 8.8 rear ends. I'm not sure why you'd pick the 8.8 if you are not drag racing. Its main advantage is being able to launch more brutally without breaking. In street use, the extra weight just requires more gas to move and makes it harder for the suspension to keep the rear tires on the ground. Google "unsprung weight" to learn more about how it affects a car's handling. __________________ Are you absolutely certain you're not pregnant?

August 24th, 2011, 12:43 PM	#17
Loki Enthusiast 1996 V6 Join Date: Feb 2011 Location: Connecticut Posts: 632 iTrader: 0 reviews	Neither one is correct. The second is just the tlok & I think the first is, too.. Your best bet is either junkyards or craigslist. A rear end is not something you want to order as shipping will have your wallet's ribs touching it's spine. Lol __________________ 1996 3.8L.. Split Port Swap, CAI, True Dual Exhaust, the car accident mod. Need cheap parts? CLICK MEEEEEEEEE!! =]

August 24th, 2011, 12:43 PM	#18
ReverendDexter Priest of the Car Gods Clapped-out '90 GT 'vert ~5.5 seconds off TTOD :( Join Date: Jan 2007 Location: Rohnert Park, CA Posts: 13,808 iTrader: 0 reviews	If you're not drag racing, that's more reason to stick with the 7.5, not to go 8.8. __________________ O o /¯/______________________ \|BLAAAAAAAAAAAAAAAAAAAAAAAAARGH!!! \_\

August 24th, 2011, 04:28 PM	#20
Loki Enthusiast 1996 V6 Join Date: Feb 2011 Location: Connecticut Posts: 632 iTrader: 0 reviews	^ I was thinking the same thing. I think it's more in the 30-50 range.. From what I've heard, anyway.. __________________ 1996 3.8L.. Split Port Swap, CAI, True Dual Exhaust, the car accident mod. Need cheap parts? CLICK MEEEEEEEEE!! =]

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