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#1 |
Registered Member
Join Date: Apr 2002
Location: Naperville, IL
Posts: 69
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![]() Ok I have had my 3.73's in for a while and I havent corrected the Speedo yet. I havent really driven the car much either now that I think of it. Anyway, what is the best way to correct the speedo on a 96 Gt with the 4R70W. The ways I've heard of are, the speedo gear, an abbot box (Spelling?), A chip, ( I dont know which one?) and the Hypertech Power Programer. So whats the best way to go? Price isnt so much of a problem. Any help out there from people with 96-98 4R70W Stangs who have gears would be great or anyone who knows whats up. Thanks for the help.
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96GTPRT: '96 Laser Red Tinted Mustang GT Convertible. (tan top). Flowmaster cat-back, Bassani X-pipe w/ cats, K&N FIPK, Hypertech 160* t-stat, MSD wires, Bosch plugs, Performance Distributors coil packs, FRPP 70mm throttle body, C&L 87mm mass air. Kenny Brown Super subs, 3.73's, BFGoodrich Comp T/A's Civic...its whats for dinner. Don't ever pull a ricer fly-by! |
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#2 |
AKA "Dr. Evil"
Join Date: Feb 1999
Location: South Fork Ranch
Posts: 1,721
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![]() All you need is a speedo gear for the 96-98 standard tranny modulars...
I'm not certain, but I think the 96-98 autos are the same...
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Uncle Sam "What the hell is up with all the gauges? Calling Captain Kirk, your ride awaits... Phasers on stun...." |
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#3 |
Registered Member
Join Date: Feb 2002
Location: Maryville,TN
Posts: 415
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![]() Hammer is correct as always. The plastic gear for the auto is about 10 - 15 bucks and installs in minutes! I think brothers performance has them in there catalog.
The 99 up cars require a 100 dollar speedo calibrator or chip/programmer
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98 GT / convertable -98 Saleen engine, Saleen appearance pkg. SHM cams,P&P NPI heads, and so much more! |
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#4 |
Registered Member
Join Date: Jan 2002
Location: Texas
Posts: 330
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![]() I had the speedo gear installed in my auto, it's not accurate though. I am off by about 5MPH from about 50 and above. I know it's not supposed to be perfect. For my car the speedo gear for 3.73 and 4.10 are the same number of splines, so there's a marginal difference in real speed readings.
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// 1998 GT-Steeda Conversion \\ -- Sold // Now own 2001 F-150 SuperCrew 5.4L \\ |
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#5 |
Registered Member
Join Date: Feb 2002
Location: Maryville,TN
Posts: 415
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![]() Steeda has the part you need part # 123 - 0023 - $ 15.95
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98 GT / convertable -98 Saleen engine, Saleen appearance pkg. SHM cams,P&P NPI heads, and so much more! |
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#6 |
Registered Member
Join Date: Jan 2002
Location: Texas
Posts: 330
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![]() That's the one I have... Like I mentioned, it's for the 3.55/3.73/4.10 and it's all the same part number. ... I guess you were talking to me, if not, then sorry for the reply... hehe
I was wondering about it before I had it installed, what's the deal with having the same number of teeth on a gear and saying it calibrates the speedo correctly if you use the same part for 3 different ratios... oh well, thank god we have police and those lovely radar guns.! :-D
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// 1998 GT-Steeda Conversion \\ -- Sold // Now own 2001 F-150 SuperCrew 5.4L \\ |
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#7 |
Registered Member
Join Date: Jun 2002
Location: Guam
Posts: 3
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![]() Your best bet is a Dallas Mustang Speedcal. Expensive but accurate and worth the money. I don't think a computer chip can calibrate the speedo on 96-98 GT/Cobra's. Only on 99+ stangs.
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Black4v Eric |
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#8 |
Registered Member
Join Date: Jun 2002
Posts: 21
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![]() Can we get a link in this thread from you on where you buy that product......how much????
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#9 |
Registered Member
Join Date: Jan 2002
Location: Texas
Posts: 330
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// 1998 GT-Steeda Conversion \\ -- Sold // Now own 2001 F-150 SuperCrew 5.4L \\ |
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#10 |
Registered Member
Join Date: Jun 2002
Posts: 21
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![]() Hmmmmm.....big problem here!
I see that they pre set this for you! That sounds great, but I have two sets of tires....snow.....summer...... If you guys state that the Brothers one is not accurate at all....and this one they pre set........what am I to do... This sucks....mucho polica.....no afforde tickete.....lose my insurance....hehehe.... I was thinking (like an idiot) that I could tell the speed by the gear and RPM's but not with new gears......hehehe.... |
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#11 |
Registered Member
Join Date: Jan 2002
Location: Texas
Posts: 330
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![]() This device uses a binary DIP switch to recalibrate it on the inside. If you look on the page, you can use their caclulator to custom tune it to what you need.
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// 1998 GT-Steeda Conversion \\ -- Sold // Now own 2001 F-150 SuperCrew 5.4L \\ |
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#12 |
Registered Member
Join Date: Jun 2002
Posts: 21
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![]() I didn't notice that.....thanks for the reply.....this looks like the way to go if you say it's more accurate......
Thanks a bunch! |
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#13 |
Registered Member
Join Date: Jan 2002
Location: Texas
Posts: 330
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![]() I believe this device is also only for 5-Spd stangs.. I don't think it works for AODE/4R70W, the harness is different.
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// 1998 GT-Steeda Conversion \\ -- Sold // Now own 2001 F-150 SuperCrew 5.4L \\ |
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#14 |
Registered Member
Join Date: Jun 2002
Posts: 21
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![]() I have the 2001-5spd.....
Should work! |
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#15 | |
Registered Member
Join Date: Jun 2002
Location: Guam
Posts: 3
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![]() Quote:
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Black4v Eric |
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