Please dont roll eyes, 2.73 to 3.42 speedo?
Thread Starter
Junior Member
Joined: Mar 2005
Posts: 85
Likes: 0
From: Leesburg, Ga
Car: 89 Firebird
Engine: 355
Transmission: 700
Please dont roll eyes, 2.73 to 3.42 speedo?
Have exhausted search and now more unsure. Everyone agrees with the 15 tooth drive gear but driven gear ranges from 40 to 43. Someone please clear this up for me.
89 firebird , 700r4 , electric speedo , 245 50 16
Also conflicting opinions about having to change sensor for the 40tooth and up.
89 firebird , 700r4 , electric speedo , 245 50 16
Also conflicting opinions about having to change sensor for the 40tooth and up.
Joined: Jun 2005
Posts: 1,245
Likes: 8
From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: Please dont roll eyes, 2.73 to 3.42 speedo?
i was bored so i did it for you. with 3.42 gears you will need 15/40.
never heard of having to change the sensor. not sure though you might have to...
here you go--- http://700r4.com/speedoCalc/speedocalc.shtml
never heard of having to change the sensor. not sure though you might have to...
here you go--- http://700r4.com/speedoCalc/speedocalc.shtml
Thread Starter
Junior Member
Joined: Mar 2005
Posts: 85
Likes: 0
From: Leesburg, Ga
Car: 89 Firebird
Engine: 355
Transmission: 700
Re: Please dont roll eyes, 2.73 to 3.42 speedo?
I looked at several speedo calculators including 700r4.com. Can't remember which one showed a 43 , PATC showed a 41.
I guess 1 tooth either way is only a couple mph as long as it is close.
I guess 1 tooth either way is only a couple mph as long as it is close.
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
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