This is topic 3.90 Gears??? in forum Tech Talk at Northern California Ford Owners  .


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Posted by 90 Stang5.0 (Member # 2710) on :
 
Whats everybodys opinion on the the new 3.90 gears.
 
Posted by 91sleeper (Member # 779) on :
 
I would have got them if they were out when I put my 3.73's in.
 
Posted by Tri-Bar (Member # 2191) on :
 
Only abot 350 RPM higher than the 3.71 and lower than the 4.10's
 
Posted by mustanggt5091 (Member # 444) on :
 
Im going to get them when a rearend rebuild becomes necessary [Big Grin]
 
Posted by Yellow94GT (Member # 431) on :
 
quote:
Originally posted by 90 Stang5.0:
Whats everybodys opinion on the the new 3.90 gears.
Wish I had them
 
Posted by 88DroptopGT (Member # 2535) on :
 
Even though I still have stock 3.08s, NEVER FEAR THE GEAR! 3.90s are pretty close to 4.10s IMO, I doubt you will feel much difference, except at the pump. Just my $.02 though.
 
Posted by st5150 (Member # 51) on :
 
I think AaronC on here has them. If they existed back when I got my 3.73's, I would have gone for 3.90's instead.
 
Posted by SteedaGT (Member # 2805) on :
 
OK here is a question, I am running 3.55's right now and the car seems to get up there fast threw gears, shifting at 5500 rpms, how much of a Dif are you going to feel going to a 373 or a 3.90 as far as shifting speed....if that makes sence
 
Posted by 67aquafastback (Member # 3090) on :
 
You will shift at lower speeds with the 3.90s over the 3,55s
 
Posted by st5150 (Member # 51) on :
 
If you have 3.55's, 3.73's and 3.90's really won't be worth the $400 to upgrade.
 
Posted by 87 Saleen (Member # 1549) on :
 
quote:
Originally posted by st5150:
If you have 3.55's, 3.73's and 3.90's really won't be worth the $400 to upgrade.
4.10's will [burnout]
 
Posted by Tri-Bar (Member # 2191) on :
 
I run 4.10's with a T-5z trans I can still use first gear.I do have to shift much sooner than I did before. But I run through the gears faster to 5th. Now 5th pulls like a any other gear would. Go foe broke and get the 4.10's
 
Posted by KCmustangboy (Member # 1927) on :
 
quote:
Originally posted by Tri-Bar:
I run 4.10's with a T-5z trans I can still use first gear.I do have to shift much sooner than I did before. But I run through the gears faster to 5th. Now 5th pulls like a any other gear would. Go foe broke and get the 4.10's
I got 3.73s and I feeling the same way unless I am on a roadtrip where traffic is doing 90mph, other then that I wish I had the 3.90s or 4.10s
 
Posted by sn8k (Member # 2350) on :
 
--------70MPH--80MPH
3.27----2037----2328 [Razz]
3.55----2211----2527 [Razz]
3.73----2323----2655 [Razz]
3.90----2429----2776 [Big Grin]
4.10----2554----2919 [Big Grin]
4.30----2679----3061 [worship]

RPMs shown above are appoximate - but pretty close for the Mustangs out there. YMMV [dance]

[ July 24, 2003, 10:57 PM: Message edited by: sn8k ]
 




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