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Author
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Topic: 3.73 or 4.10
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saclve
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Member # 13280
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Can not decide if I want 4.10 gears or 3.73 need help deciding before I place the order on am.com , its a 98 gt vert 5speed . Gettin pi cam and intake swap already have cai and offroad xpipe. Not much of a hwy driver mostly street driving and once a month street legal wWednesday drag racing ?? Help me out
Posts: 276 | From: sacramento | Registered: Nov 2013
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Tom Renzo
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Member # 13165
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5 Speeder 3.73 Auto 4.10 just me.
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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013
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saclve
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Member # 13280
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quote:
Originally posted by Tom Renzo:
5 Speeder 3.73 Auto 4.10 just me.
Will there be a big diff over stock gears compared to 3.73 ? What about performance diff between 4.10 vs 3.73
Posts: 276 | From: sacramento | Registered: Nov 2013
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SwEeT03Gt
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Member # 10283
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cant decide go 3.90
Posts: 4484 | From: -NicKlE n DiMe- | Registered: Sep 2010
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saclve
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Member # 13280
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You think American muscle is best place to order gear set for $260
Posts: 276 | From: sacramento | Registered: Nov 2013
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Tom Renzo
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Member # 13165
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Randy has a good selection of gears but as far as i know they do not offer it in 3.9 for the 8.8. But i have been using his stuff for many years. Not sure if ford motorsport offers a 3.9. If memory serves they do not. Yucon does not also. But many aftermarket gear suppliers do.
What is your final drive ratio NOW!!! Performance increase will be determined by the gear set you now have(RATIO PLEASE)
[ 2014-01-25, 07:36 PM: Message edited by: Tom Renzo ]
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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013
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saclve
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Member # 13280
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Who is randy??
Posts: 276 | From: sacramento | Registered: Nov 2013
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Tom Renzo
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Member # 13165
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Here you go
http://www.ringpinion.com/
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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013
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saclve
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Member # 13280
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Ok thanks
Posts: 276 | From: sacramento | Registered: Nov 2013
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saclve
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Member # 13280
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Silly question but what type of rear end is in the 98 mustang gt. 8.8 what spline
Posts: 276 | From: sacramento | Registered: Nov 2013
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SwEeT03Gt
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Member # 10283
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Yukon offers 3.90 on American muscle
Posts: 4484 | From: -NicKlE n DiMe- | Registered: Sep 2010
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Tom Renzo
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Member # 13165
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I am sure they do offer the 3.9 final but as far as i know Randy does not offer them for the 8.8.Just a talking point that is all. With a 5 speeder the 4.1-3.9 is a bit steep for a not so high revving ford engine. just me. The 3.7 is a better choice in my opinion. But then again the extreamly low torque of the 302 does present a little bit of an issue on final drive selections??
[ 2014-01-25, 08:17 PM: Message edited by: Tom Renzo ]
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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013
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redvenom
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Member # 12651
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Dude go 3:73 you won't regret it
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1990 Gt
Some what stock
1993 GT vert-(stolen)
Posts: 623 | From: cali | Registered: Dec 2012
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70stang351w
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Member # 9948
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quote:
Originally posted by saclve:
Silly question but what type of rear end is in the 98 mustang gt. 8.8 what spline
Stock is 28spline
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1996 GT VERT /32v MOD - SOLD
1970 Mustang Coupe M-Code 351w
Posts: 1419 | From: 925 | Registered: Apr 2010
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Tom Renzo
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Member # 13165
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The spline count has nothing to do with a change out of the ring & pinion. It only maters when changing carriers or axles.
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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013
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saclve
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Member # 13280
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posted
quote:
Originally posted by Tom Renzo:
The spline count has nothing to do with a change out of the ring & pinion. It only maters when changing carriers or axles.
I was asking bcus the parts page at one site requires all that info but im just going to stick with qmerican muscle
Posts: 276 | From: sacramento | Registered: Nov 2013
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SwEeT03Gt
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Member # 10283
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posted
quote:
Originally posted by red5o:
Dude go 3:73 you won't regret it
I went 3.73 I regretted it wish I would of gone 4.10's
Posts: 4484 | From: -NicKlE n DiMe- | Registered: Sep 2010
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saclve
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Member # 13280
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posted
quote:
Originally posted by SwEeT03Gt:
quote:
Originally posted by red5o:
Dude go 3:73 you won't regret it
I went 3.73 I regretted it wish I would of gone 4.10's
What made you want 4.10 and what car was that in ??
Posts: 276 | From: sacramento | Registered: Nov 2013
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Blown_gt
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Member # 10698
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I got 410s in my 01 bullitt and I love them I drive mines everyday 70 miles I'm always at 2 1/2 rpms on the freeway. I sometimes think about upgrading to bigger gears tho the 410 just ain't enough sometimes lol
Edit: Don't fear the gear ![[Wink]](wink.gif)
[ 2014-01-26, 01:01 PM: Message edited by: 86hatchkid ]
Posts: 1363 | From: stockton | Registered: Feb 2011
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H8RPWRD
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Member # 12588
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4:10's FTW!
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89 Lx Vert
93 LX Notch- sold
01 Bullitt #00919- Sold
90 LX- Sold
89 LX Vert- Sold
89 LX (DarkHorse)-Sold
Posts: 1330 | From: Hayward | Registered: Dec 2012
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Tom Renzo
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Member # 13165
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At 65 MPH T5 28 inch tire here is the difference
2250 RPM’s 3.73
2350 RPM’S 4.10
APP 100 RPM at 65 MPH
AUTO TRANNY at 65 MPH
2000 RPM’s 3.73
2300 RPM’s 4.10
300 RPM difference
Now you can decide accordingly.
[ 2014-01-26, 04:22 PM: Message edited by: Tom Renzo ]
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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013
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redvenom
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Member # 12651
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posted
quote:
Originally posted by SwEeT03Gt:
quote:
Originally posted by red5o:
Dude go 3:73 you won't regret it
I went 3.73 I regretted it wish I would of gone 4.10's
Well what ever floats your bout I had them in my 93 vert 5 spd I was launching real quick
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1990 Gt
Some what stock
1993 GT vert-(stolen)
Posts: 623 | From: cali | Registered: Dec 2012
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saclve
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Member # 13280
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posted
Ok im just getting 4.10s for my t45 I'm not worried about hwy mpg mostly street drivin and monthly track visits
Posts: 276 | From: sacramento | Registered: Nov 2013
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saclve
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Member # 13280
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You guys think a bfg comp 2 or nitto 555 in 275/40r17 will handle launches with 4.10s and 230whp 270lbft (estimated power ) I just keep hearing ppl say it will magnify traction issues but only traction issue I have is if I launch at 3k rpm
Posts: 276 | From: sacramento | Registered: Nov 2013
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98 ROUSH
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Member # 10309
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Had both 3.73 and 4.10s on my old pi swap set up go with 4.10s trust me. Faster and not that much difference on the hwy.
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Built 2v
Stroked, Cammed and Blown
Advanced Auto Built & Kurgan Tuned
Posts: 4678 | From: North Hayward, Cali | Registered: Sep 2010
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