t5 and what rear gearing is best

Discussion in 'Technical' started by 302-72-mav, Aug 5, 2009.

  1. 302-72-mav

    302-72-mav Member

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    what gear should i use in the rear end with my t5 trans // my shifts with the stock 3.00 gear is. 1 gear is about 25 mph and 2 is 45 to 50 mph N/A on the others
     
    302-72-mav, Aug 5, 2009
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  2. JHodges

    JHodges thumper

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    for street use I would reccpomend a 3.55 or 3.80
     
    JHodges, Aug 5, 2009
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  3. CaptainComet

    CaptainComet Large Member

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    For street use, those two ratios seem to be really good in our cars. Mavs are light enough cars that any more ratio is probably a waste.

    This advice is coming from having just yanking out a 4.62 (it was almost free and I was doing a lot of bracket racing). Just put in a 3.55 and can't wait to get back to the track. I'll bet the ET is the same with more mph.

    There are others here that have echoed this, too.
     
    CaptainComet, Aug 5, 2009
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  4. 302-72-mav

    302-72-mav Member

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    i was thinking somewhere around 377 because that's what most mustangs swap to
     
    302-72-mav, Aug 18, 2009
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  5. Mavaholic

    Mavaholic Growing older but not up!

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    You want a stop light stomper or great gas mileage?
     
    Mavaholic, Aug 18, 2009
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  6. mean_maverick

    mean_maverick Senior Member

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    im gonna run 3.80's with mine...
     
    mean_maverick, Aug 18, 2009
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  7. Bryant

    Bryant forgot more than learned

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    they dont make 3.77 gear sets. there are 3.73s for 8.8s that the newer mustangs use. and 3.80s for the 8" that is in our mavericks. there is no perciveable difference between the two ratios. if you want economy go with the 3.55s. if you want an edge towards perfromance that go with the 3.80s. if you want good performance and are not too concerned about fuel economy then 4.10s are what you want.
     
    Bryant, Aug 18, 2009
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  8. 302-72-mav

    302-72-mav Member

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    probably the 380 the stock ratio is 300 right ?
     
    302-72-mav, Aug 19, 2009
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  9. fastback86

    fastback86 Loose cars and fast women

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    I just put 3.89s in mine with a c-4. Love it!
     
    fastback86, Aug 19, 2009
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  10. 71gold

    71gold Frank Cooper Supporting Member

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    ...and how does this info help him out with his T-5 gear choice...


    ...:huh:...
     
    71gold, Aug 19, 2009
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  11. shaunh82

    shaunh82 Member

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    I jumped from the 2.80s or what ever the stock ratio was in my 8", to a 3.73. Both with the T-5, the 2.80s were nice on the highway, but didn't really ever get into 5th gear, now with the 3.73s, 1st gear is a crawler, but it starts out fine in 2nd. I think I may swap the trans out or re gear it at some point
     
    shaunh82, Aug 19, 2009
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  12. GrabberGT

    GrabberGT Chris

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    I'm running 3.55 in mine. 1st gear can get annoying as you run out of it pretty fast so I can't imagine even needing 1st gear with a 3.80. Mine is very daily drivable and I rarely drag race it. With my new 9", I chose to stay with a 3.50 with hopes of eventually changing my first gear from a 3.35 to a 2.95 first gear.
     
    GrabberGT, Aug 19, 2009
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  13. fastback86

    fastback86 Loose cars and fast women

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    I dunno, someone else's opinion, especially for top end since his 4th gear and my drive gear have the same ratio. My tires are 215/65-16 (27" tall).

    More directly I have a T-5 in my 1980 Mustang with 3.73's and 225/60-15 (25" tall) tires and I almost wish it was a little lower but I need to run it down the track again to be sure.
     
    fastback86, Aug 19, 2009
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  14. maverick5.0

    maverick5.0 Member

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    3.35 with 3.80 is useless on street car !!!! unless you will be towing with the maverick and need the power take off on a steep hill.... my choice would be the 3.80 , 2.95 1st gear and .63 overdrive for performance driving or the 3.55 for long range cruzing and economy.... any way... it will be a fun car to drive !!!!!
     
    maverick5.0, Aug 25, 2009
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  15. my70mav

    my70mav Member

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    my foxbody had a t5 and 3.55's when i got it and they worked great all around.for all around but a bit more towards performance go 3.73 or do like me,buy stock in tires and install 4.11's. even with the overdrive i am still well over 3000 rpm's at 70.
     
    my70mav, Aug 25, 2009
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