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08-24-2007, 09:37 AM
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#1
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Rear End
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Registered User
Join Date: Jul 2004
City: NO END
State: Texas
Posts: 348
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My long term plan for my car includes making upgrades to my rear end. One of the upgrades I'd like to do is making the transition to an 8.8'' rear end. Someone told me all I had to do was simply to change the center piece of the rear end. I don't know the terminology but ---0--- if that were the rear end it would be the ' 0 ' that would need to be replaced only. (The pumpkin. Just found out.) While swapping that out I'd change the gears to a 3.73 and a T-Lok. Can anyone tell me more about the process I'd have to go through to make this change?
__________________
V6 Midnight Black
CAI w/ K&N Filter, Tokico Complete Suspension kit, Single Flowmaster w/ turndown, GT rear sway bar.
Last edited by megax29; 08-24-2007 at 09:50 AM.
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08-24-2007, 11:08 AM
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#2
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Re: Rear End
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too broke to race
Join Date: May 2007
City: Denham Springs
State: Louisiana
Posts: 953
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when you say a pumpkin it usually refers to a Ford 9" do you want an 8.8 Live axle or and 8.8 IRS?
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 06 GT flowmasters, SCT2, CAI, 4:10 gears, ZEX 150hp wet shot. 11.76E/T at 115MPH & its my wife's car lol and the other muscle is a 1970
Chevelle SS 454
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08-24-2007, 11:28 AM
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#3
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Re: Rear End
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Deranged
Join Date: Jan 2005
City: Largo
State: Florida
Posts: 6,313
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It's not that simple !!! Look for a wrecked 2004 GT get the 8.8 Then it will be a simple swap so far as the rears have a shop do it read this 8.8" Rear Axle
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Mods-MAc CAI , True Dual Flowmaster 40,3.73 ,T-Lok, 25% UDP, 3/8 Phenolic Intake Spacer ,Steeda Tri-ax, SCT Chip/ Tune
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08-25-2007, 10:30 PM
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#4
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Re: Rear End
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postarama
Join Date: Aug 2003
City: Southaven
State: Mississippi
Posts: 24,355
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You will need a rear end from a 99-04 GT in order to make this work. Be ready to spend at least 600 dollars for a rear end in good shape unless you can find a hookup. You will be much better off buying a complete rear rather than having to piece one together in the end.
__________________
"I'm not driving too fast...just flying too low"
Mine:
-87 ranger- broke
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project
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08-27-2007, 10:20 AM
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#5
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Re: Rear End
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Registered User
Join Date: Jul 2004
City: NO END
State: Texas
Posts: 348
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Someone told me I just needed to change the center part of the axle and that was it...I guess it's not that easy. Would making the change to a 8.8" be beneficial to my cars performance or would it only benefit by making it more durable. Would the performance to cost ratio be greater with an IRS system or regular?
__________________
V6 Midnight Black
CAI w/ K&N Filter, Tokico Complete Suspension kit, Single Flowmaster w/ turndown, GT rear sway bar.
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08-27-2007, 10:27 AM
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#6
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Re: Rear End
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I just lubricated on your foot!
Join Date: Feb 2007
City: Vicksburg
State: Mississippi
Posts: 783
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what are you wanting to do with the car? your end goal will decide your course of action as far as deciding what type of rearend to go with...
if you are wanting to build a strictly straight line drag car, than an IRS will be useless as you will brake axles left and right...you will want a solid axle for this purpose...
if you want a car that is made for handling twisties and smooth acceleration rather than sudden hard acceleration in a straight line, you would probably be more justified in going with and IRS...
When you say "an IRS system or regular", I assume by regular you are meaning a solid axle?
__________________
'05 GT - Borla Catback, Koni Adjustable Shocks/Struts, Hawk HP+ Brakes all around, Steeda Front Sway Bar & End-Links, Hoosier A6's on Enkei Race Wheels, Royal Purple Fluids
'07 F-150 Ext. Cab XLT Flareside - 5.4 Triton - Roush Dual Exit Cat Back
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08-27-2007, 03:46 PM
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#7
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Re: Rear End
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Registered User
Join Date: Jul 2004
City: NO END
State: Texas
Posts: 348
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Looking to build a fun all around car for street fun and not strictly for racing on the strip. Definitely not a drag car...more like a street car. So how do I go from a 7.5" solid to a 8.8" IRS?
__________________
V6 Midnight Black
CAI w/ K&N Filter, Tokico Complete Suspension kit, Single Flowmaster w/ turndown, GT rear sway bar.
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08-27-2007, 07:22 PM
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#8
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Re: Rear End
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WTF^^...
Join Date: May 2003
City: Hoover / Florence
State: Alabama
Posts: 27,254
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buy the entire 8.8 rear end and be done with it.
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2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Stingers, JLT, SS Inserts, MM FLSFC & CC Plates, SS Lines, H&R Race springs, IRS Brace, MRT Hood Struts
ME.com Member #29 - 400rwhp/380rwtq
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08-27-2007, 08:19 PM
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#9
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Re: Rear End
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postarama
Join Date: Aug 2003
City: Southaven
State: Mississippi
Posts: 24,355
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IRS is a much heavier system than your factory rear end. If you are wanting to go this route be ready to spend around 1000 dollars for the entire setup. Yes, it will make a difference in handling, but, you can make the same difference with a solid rear if you want.
__________________
"I'm not driving too fast...just flying too low"
Mine:
-87 ranger- broke
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project
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