9 Inch or 8.8

Reply Subscribe

Thread Tools

Search this Thread

Jan 13, 2010 | 09:34 PM

99SS#20

Thread Starter

Staging Lane

iTrader: (13)

Joined: Oct 2008

Posts: 51

Likes: 0

From: Texas

9 Inch or 8.8

I have a 9inch from a 70's truck that I was gonna cut to put in the 99. I got offered a great deal on an 8.8 out of an Explorer. Already has disc brakes and is 59.25 flange to flange. I plan on a DD/weekend drag racer. Trans is a 4L80E. Motor is a stock bottom LS1 with 5.3 heads, LS6 intake, full exhaust and a 150 or 200 shot. Thanks.

Jan 13, 2010 | 10:22 PM

getusumws6

TECH Regular

iTrader: (9)

Joined: Jan 2006

Posts: 445

Likes: 0

From: olathe,ks

Have fun with the convertion

Jan 14, 2010 | 12:26 AM

99SS#20

Thread Starter

Staging Lane

iTrader: (13)

Joined: Oct 2008

Posts: 51

Likes: 0

From: Texas

Thanks, it promises to be a big one. I was thinking of using the 8.8 since it is already 31 spline and has disc brakes.

Jan 14, 2010 | 02:59 AM

need4fun2469

TECH Apprentice

Joined: Jun 2009

Posts: 370

Likes: 0

From: Garland, TX

explorer has an offset to it. 8.8 out of a mustang is what is ideal.
you could use the explorer axle and weld your axle tubes from a 10 bolt to it.

Jan 14, 2010 | 03:08 AM

99SS#20

Thread Starter

Staging Lane

iTrader: (13)

Joined: Oct 2008

Posts: 51

Likes: 0

From: Texas

I wanted a Mustang axle, but the one from the Explorer would be a freebie. I had never thought of welding the tubes on from the 10 bolt. I'll have to measure and see if they are a match.

Jan 16, 2010 | 05:58 PM

need4fun2469

TECH Apprentice

Joined: Jun 2009

Posts: 370

Likes: 0

From: Garland, TX

you have to cut 3" off of them.

Jan 16, 2010 | 06:39 PM

SHovV

TECH Resident

iTrader: (1)

Joined: May 2008

Posts: 937

Likes: 2

From: Rockport, TX

since its a conversion, might as well go with the 9" no?

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Verdad Gallardo

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Verdad Gallardo

10 Camaros You Should Never Buy

10 LS Engine Myths That Refuse to Die

Verdad Gallardo

Jan 16, 2010 | 09:31 PM

99SS#20

Thread Starter

Staging Lane

iTrader: (13)

Joined: Oct 2008

Posts: 51

Likes: 0

From: Texas

Are the tubes the same diameter on the 10 bolt and the 8.8? What about the axles fitting in the bearings?

Jan 17, 2010 | 03:39 AM

#10

need4fun2469

TECH Apprentice

Joined: Jun 2009

Posts: 370

Likes: 0

From: Garland, TX

do a search for " 8.8 Build ".
Everything you need is in there.
There are two opions listed for using the 8.8 tubes or the ones from a 10-bolt.

Jan 17, 2010 | 09:43 PM

#11

99SS#20

Thread Starter

Staging Lane

iTrader: (13)

Joined: Oct 2008

Posts: 51

Likes: 0

From: Texas

Thanks for the info.

Jan 17, 2010 | 10:02 PM

#12

808z28camaro

TECH Regular

Joined: May 2009

Posts: 468

Likes: 0

From: Honolulu, HI

I would just go with a bolt in 9" IMO. no fitment problems and no miscalculations. to me time is money!!

Jan 21, 2010 | 01:46 AM

#13

SPOOLIN Z28

Launching!

Joined: Jan 2007

Posts: 250

Likes: 1

From: LAS VEGAS, NV

I say 8.8. Light and strong, it is a proven rear end time and time. I dont care too much for such a huge rear end that weighs more and bottoms out on my lowered car. I plan on fabricating a kit and selling 8.8 installs with and without a differential. Hopefully this will happen soon