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  • SN95 4.6L Mustang Tech

Will a rear end girdle increase life span of 8.8 rear?

  • Thread starter Thread starter TonyG
  • Start date Start date Mar 27, 2006
T

TonyG

Founding Member
Apr 12, 2002
200
0
17
Owings Mills, MD
Mar 27, 2006
#1
  • Mar 27, 2006
  • #1
I've been having pretty good luck with the stock 8.8 trac lock. I'm making 455 rwhp, have about 150 passes and I had it rebuilt twice. I know its time to rebuild when I start getting one-wheel burnouts. It seems like a good strategy to just rebuild the rear every couple of years, instead of trying to find an indestructible limited slip diff.

My 60' in those 150 passes were about 1.7-1.8s, which may explain the longevity of the stock tracloc. But recently I switched from ET streets to a full slick, and found that I can launch much harder. First time at the track with the slicks netted me low-mid 1.60's. I know with some more practice I'll be in the 1.50's.

I'm afraid that 1.50's-1.60's will kill off the tracloc a lot faster than 1.70's-1.80's did, and I was looking for ways to compensate for this.

Rear end girdles, like the TA came to mind. I know the girdles reduce flex, but will this really help extend the life, or do these girdles just prevent the rear from spilling all over the track when they blow up? Thanks
 

Dreams2Reality

Founding Member
Apr 30, 2002
140
1
19
NJ
Mar 27, 2006
#2
  • Mar 27, 2006
  • #2
just prevent the rear from spilling all over the track when they blow up
Click to expand...

there's your answer
 

damacman

Member
Aug 12, 2003
529
0
16
Phoenix, AZ
Mar 27, 2006
#3
  • Mar 27, 2006
  • #3
Dude, your so lucky!. Are you saying that you're running 11.30s with 1.7 short times with the stock axles in a 5 speed? Unheard of!

Mine snapped off inside the carrier at the splines and was mass carnage . . . I'd also like to know more about the girdles . . .
 

damacman

Member
Aug 12, 2003
529
0
16
Phoenix, AZ
Mar 27, 2006
#4
  • Mar 27, 2006
  • #4
btw, what kind of intercooler is that lurking in front of your radiator? And is the piping between your Vortech and it and from it to the t/b custom made?
 

the98stang

Active Member
Aug 12, 2005
2,408
0
47
Clovis, CA
Mar 28, 2006
#5
  • Mar 28, 2006
  • #5
I doubt they extend the life of the differential. If you want your rear to last, you'll need a Detroit locker with 31 spline axles...
 

jstreet0204

Active Member
Jun 26, 2003
939
0
36
Winston Salem, NC
Mar 28, 2006
#6
  • Mar 28, 2006
  • #6
They WILL extend the life of the rearend. The whole purpose is to strengthen the rearend and support the main caps. They also reduce the oil temp due to better heat exchange. Now the bosus is they look much better, and they have drain plugs to make it easier to change the oil. They will not take the place of stronger axles though.
 

stangGT97

New Member
Dec 22, 2004
1,299
1
0
Boston area, MA
Mar 28, 2006
#7
  • Mar 28, 2006
  • #7
jstreet0204 said:
They WILL extend the life of the rearend. The whole purpose is to strengthen the rearend and support the main caps. They also reduce the oil temp due to better heat exchange. Now the bosus is they look much better, and they have drain plugs to make it easier to change the oil. They will not take the place of stronger axles though.
Click to expand...

well put!
 

97vertstang

Member
Aug 17, 2005
85
0
6
fontana ca
Mar 28, 2006
#8
  • Mar 28, 2006
  • #8
if all u do is race why not go with a spool??
 
T

TonyG

Founding Member
Apr 12, 2002
200
0
17
Owings Mills, MD
Mar 28, 2006
#9
  • Mar 28, 2006
  • #9
damac, I've been running 11.70's with 1.7-1.8 short times on ET Streets for a long time. Recently, I switched to shorter gears and taller/stickier tires and my times dropped to 11.50's with 1.6 short times. 11.30's were achieved in 40 degree air; 11.50 is more typical. And yes, this is with stock axles and stock (but 2x rebuilt) traclok. Tranny is stock T45 and clutch is SPEC 3.

Blower is Vortech. Intercooler and plumbing is Procharger
 

RandyStinchcomb

New Member
May 25, 2005
1,159
3
0
Randallstown, Md
Mar 28, 2006
#10
  • Mar 28, 2006
  • #10
well your living on borrowed-time, guess you'll be visiting me soon
 

jstreet0204

Active Member
Jun 26, 2003
939
0
36
Winston Salem, NC
Mar 28, 2006
#11
  • Mar 28, 2006
  • #11
RandyStinchcomb said:
well your living on borrowed-time, guess you'll be visiting me soon
Click to expand...

Parts guys can be a little like the grim reaper sometimes.
 

RandyStinchcomb

New Member
May 25, 2005
1,159
3
0
Randallstown, Md
Mar 28, 2006
#12
  • Mar 28, 2006
  • #12
jstreet0204 said:
Parts guys can be a little like the grim reaper sometimes.
Click to expand...



yeah, we live n' breath for that ****
 

tomustang

Psychotic Member
Founding Member
Jun 8, 2000
3,434
2
78
McLean Hospital
Mar 28, 2006
#13
  • Mar 28, 2006
  • #13
jstreet0204 said:
Parts guys can be a little like the grim reaper sometimes.
Click to expand...
yeah and he gets paid for it +2
 

donsbad68

Immensely Educated
Jan 4, 2003
838
0
0
Oklahoma
Mar 28, 2006
#14
  • Mar 28, 2006
  • #14
We grenaded the stock diff with a 1.8 sixty foot running 12.9's. That was with a gridle.
 
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