Rear End Swap..

Reply Subscribe

Thread Tools

Search this Thread

Mar 17, 2011 | 09:46 PM

Chuck_01

Thread Starter

Registered User

Joined: Jan 2011

Posts: 23

Likes: 0

Rear End Swap..

Tryin 2 put a limited slip posi form a 96 z28 into an 01 v6.. the rear end is a 3channel ABS system jus like mine and has 3.42 gears. im thinkin it should bolt right up but would i have 2 do any reprogramming 2 the computer..?
ANY INFO WOULD REALLY HELP OUT THANX...

Mar 18, 2011 | 12:48 AM

ssvert99

LS1Tech Premium Sponsor

iTrader: (26)

Joined: Dec 2006

Posts: 3,490

Likes: 5

From: Central Illinois

a long as the gear ratios were the same then it should be a direct swap. all 3ch abs systems 93-02 used 106 tooth reluctor so no issues there. be sure to check the backlash and gear contact pattern... chances are the shims won't be exactly the same.

Mar 18, 2011 | 07:06 AM

FirstYrLS1Z

TECH Veteran

iTrader: (4)

Joined: Aug 2004

Posts: 4,219

Likes: 147

From: Euclid,Ohio

As in the other thread you started,you never told us the gear ratio currently in the car. Switching to 3.42 from some other ratio will require reprogamming to correct speedo.

Mar 19, 2011 | 12:27 AM

Chuck_01

Thread Starter

Registered User

Joined: Jan 2011

Posts: 23

Likes: 0

Sorry thought all u need was tha other gear ratio.. mine is a 2.73 rear end.. I spoke 2 a friend n he said that all it could use if i did tha swap would be a tune 2 adjust the engine n other components 2 the new gear ratio.. is that wut u meant by reprogramming..?

Mar 19, 2011 | 09:20 AM

FirstYrLS1Z

TECH Veteran

iTrader: (4)

Joined: Aug 2004

Posts: 4,219

Likes: 147

From: Euclid,Ohio

Changing 2.73 to 3.42 is a 25% change. Speedo will indicate 75mph at an actual 60mph. Auto shift points will be off,not sure if this is correct but I think shift points are mph based not rpm based. Parameters in the computor have to be reconfigured.

Mar 19, 2011 | 06:25 PM

Chuck_01

Thread Starter

Registered User

Joined: Jan 2011

Posts: 23

Likes: 0

So how can i go about doin this...? can i jus get a tune for that specific gear..?

Mar 20, 2011 | 05:03 PM

PlowBoy11

Staging Lane

Joined: Feb 2011

Posts: 54

Likes: 0

From: Texas

I'm kinda in the same boat went from a 2.73 to a 4.10 ya the speedo is way off I think if i'm going 70 it says i'm going 110 and the speed limter shuts me off when i hit 75-80.