3:08-3:42 rearend swap confuses computer?
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Joined: Dec 2006
Posts: 271
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From: Hoffman Estates Il
Car: '88 IROC T5 Vert ‘13 Vette
Engine: 305 TBI
Transmission: T5
Axle/Gears: 3:08
3:08-3:42 rearend swap confuses computer?
Hi gurus,
Aside from speedometer error, would the ECM or anyting else be out of whack if I swapped a '88 3:08 posi drum rearend for a '87 3:42 posi drum rear end in a '88 IROC L03 T5?
Thanks
"prolly" is not a word!
Aside from speedometer error, would the ECM or anyting else be out of whack if I swapped a '88 3:08 posi drum rearend for a '87 3:42 posi drum rear end in a '88 IROC L03 T5?
Thanks
"prolly" is not a word!
Joined: May 2010
Posts: 537
Likes: 31
From: Texas
Car: 85 Camaro
Engine: 454 RamJet
Transmission: LT1/T56
Axle/Gears: 8.8w/4.10
Re: 3:08-3:42 rearend swap confuses computer?
Nope! I am runnig a 3.08 right now cause I blew my 3.45 up. I have another sitting in my garage that im currently putting 3.73 in to replace the 3.45 with( getting rid of the 9 bolt and going to the 7.65 ) Your speedo will be approx 10mi/hr off depending on your tire size.
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 3:08-3:42 rearend swap confuses computer?
JamesC
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