120 speedo in 88 TA
Thread Starter
2011 Norwood Gathering
ThirdGen Firebird Rep
ThirdGen Firebird Rep
Joined: Jun 2000
Posts: 3,435
Likes: 4
From: Sarasota FL
Car: 99 WS6 / 00 SS / 11 CTS-V / 13 300
Engine: LS1 / LS1 / LSA / 5.7 Hemi
Transmission: 4L60E / T-56 / 6L80E / W5A80
Axle/Gears: 3.23 / 3.42 Auburn / 3.23 / 2.62
120 speedo in 88 TA
Been meaning to ask this for awhile. My 305 TPI 5 speed 88 TA has a 120 speedo...I assume this is normal? My 86 305 TPI car has the 140 speedo.
I sincerely doubt someone swapped a 140 for a 120, so I assume this was the case in 88 for a 305 car?
I sincerely doubt someone swapped a 140 for a 120, so I assume this was the case in 88 for a 305 car?
Thread Starter
2011 Norwood Gathering
ThirdGen Firebird Rep
ThirdGen Firebird Rep
Joined: Jun 2000
Posts: 3,435
Likes: 4
From: Sarasota FL
Car: 99 WS6 / 00 SS / 11 CTS-V / 13 300
Engine: LS1 / LS1 / LSA / 5.7 Hemi
Transmission: 4L60E / T-56 / 6L80E / W5A80
Axle/Gears: 3.23 / 3.42 Auburn / 3.23 / 2.62
Re: 120 speedo in 88 TA
Mine's a WS6, but does not have performance axle...
Re: 120 speedo in 88 TA
Same here on the performance axle. As best as I could tell it has the 3.08 gears.
As I recall the cars that got the 140 were the 350s and 305 TPIs with the performance rear axle.
As I recall the cars that got the 140 were the 350s and 305 TPIs with the performance rear axle.
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