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Author
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Topic: WHAT GEARS SHOULD I GET????
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macthizzle
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Member # 3492
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posted
 
 
I AM LOOKING TO REBUILD MY REAR END AND I HAVE A 86 COUPE WITH 351W SVO BLOCK AND HEADS AND A TREMEC TKO TRANNY.I WAS ORIGINALLY GOING TO PUT 355'S IN BUT NOW THINKING OF 373'S.I ALSO HAVE QA1 KMEMBER A ARMS AND COILOVERS WITH UPPER AND LOWER REAR CONTROL ARMS.I DO WANT TO TAKE THIS CAR TO THE TRACK BUT I ALSO LIKE DRIVING IT ON THE WEEKENDS.MY FRIEND HAS A REAR END FROM A 98 COBRA,I WAS THINKING OF SWITCHING THE INSIDES TO MY SN95 REAREND.
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"FUCK U PAY ME"
Posts: 992 | From: REDWOOD CITY | Registered: Oct 2003
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Jdub07
( O Y O )
Member # 2728
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posted
If your original thought is for 3.55's then go 3.73's if your original thought is for 3.73's then go 4.10's and so on.
Posts: 7282 | Registered: Apr 2003
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gtowned
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Member # 8156
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posted
besides gear ratio the cobra rear has the same internals as your current rear end
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Taking terminators off the road one at a time...
Posts: 1106 | From: Sacramento | Registered: Jan 2008
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JohnB
Tech Moderator
Member # 969
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posted
If you're staying NA, go 3.73s...3.55s for a blown setup. If you drive it alot, stick with 3.55s...you won't regret it. Only difference between a Cobra and SN95 rear is the brakes, most gear ratios are already 3.27s.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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2BlueGeeTees
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Member # 4702
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posted
+1 on 3.73, not like your car is a gas saveer anyway, plus johnb knows his shit, i've known him for a while now, never leads me in the wrong direction, you'll be happy with the 3.73
Posts: 2316 | From: Vacaville | Registered: Jul 2004
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Wolfie351
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Member # 651
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I have a similar setup and I don't like my 3.73s, it revs way to quickly to make any use of the bottom end torque. Gears are just torque multipliers. If you have a low end/high torque 351w, you don't necessarily need more gear to rev through the RPMs quickly, you already have it in your engine. With that said, I would say the final decision would depend on your engine setup.
Posts: 1214 | From: South Bay | Registered: Dec 2001
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Slow05GT
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Member # 8408
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373's!!
Posts: 2233 | From: Natomas, ca | Registered: May 2008
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2BlueGeeTees
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Member # 4702
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where does your engine make power rpm wise because the gears are going to be two diferent animals as far as street tires around town and slicks at the track
Posts: 2316 | From: Vacaville | Registered: Jul 2004
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Jaejae5.0
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Member # 7958
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posted
go with the 3.73's johnb rebuilt my rear end and installed them for a coo price
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1987 notchback h/c/i 302 & 70mm turbo SOLD
2000 camaro ss cam only
Posts: 4890 | From: the combustion chamber | Registered: Oct 2007
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STREETFIGHTER50
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Member # 2973
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If u do alot of freeway then i'd go 3.55's. just had my 3.73's put in by john b & i kinda regret not taking his advice on 3.55's since the car is a driver/cruiser. feels nice, but the rpm's are a little high with my freeway cruising speed
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'89 Coupe-Kurgan Tuned 498/491RW, Vortech SI, 351W
Posts: 3925 | From: SF Bay Coastin' to Rocklin | Registered: Jun 2003
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