08-04-2013, 03:50 PM | #1 |
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Join Date: Apr 2013
Location: Oregon
Posts: 38
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Transmission
I have a 38' 3 spd top loader. Engine=59A flathead. Go with the 3 spd or go T5 5 spd? If I go with the T5 should I upgrade the 38" stock rear end to a 9"?
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08-04-2013, 05:03 PM | #2 |
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Join Date: May 2010
Location: Gardiner Me.
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Re: Transmission
I'd go with the T-5 and use the stock 38 rear with 3:78 gears, use an adapter on the rear end to fit an open drive shaft, and make up some traction bars. The 9in. is good but heavy. Walt
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08-04-2013, 05:08 PM | #3 |
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Re: Transmission
if you use the t 5 it would be a lot easier to use the 9", if you dont your going to have to adpt the 38 rear end to open drive line for the t 5 trans or vice versa, you can use a ford 8". lighter it will hold over 300 horses, the nine inch 32 spline can be shortened to go in narrow frames
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08-04-2013, 05:24 PM | #4 |
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Location: WA state
Posts: 771
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Re: Transmission
Tell us why you are unhappy with what you have? Bad trans or rear end? Want better economy? If you change over to T-5 and open drive, It can get expensive, especially if you hire it done.
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08-05-2013, 09:13 AM | #5 |
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Join Date: May 2010
Location: El Cerrito CA
Posts: 338
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Re: Transmission
Look into a Mitchell overdrive, bolts right in.
I run a 26% Mitchell using 3:54s in the rear end. |
08-07-2013, 10:31 PM | #6 |
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Location: Oregon
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Re: Transmission
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08-07-2013, 10:55 PM | #7 |
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Location: Wa.
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Re: Transmission
Go drive any car or truck with a T5. Even originals. You will never go back to a 3 speed.
The cheapest way on the rear end is convert the original to open drive with STOUT radius rods anchored in the center to a bellyband. It won't take a lot of abuse though. Next would be an 8 inch. Plenty stout for 300 to 400 hp if you don't side step the clutch. Forget the 9 inch for your car unless you have really big hp. They are 90 lb heavier than the 8 inch. |
08-08-2013, 03:00 PM | #8 |
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Location: Central MN
Posts: 108
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Re: Transmission
I have the T5 behind my flathead. Cruise 80 all day long under 2500 rpm and if I am nice average 19 mpg
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08-10-2013, 10:58 PM | #9 |
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Join Date: Apr 2013
Location: Oregon
Posts: 38
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Re: Transmission
Ok. I'm thinking T5 and an 8". Thanks for the advice.
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08-11-2013, 09:35 AM | #10 |
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Join Date: May 2010
Location: Tucson, Az.
Posts: 322
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Re: Transmission
The T-5 transmission was used for several years and aplications. Is there a more desirable year to use? Which one better to use?
Thanks |
08-11-2013, 02:47 PM | #11 | |
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Location: Wa.
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Re: Transmission
Quote:
Here is a list of almost all the ones that were made. Keep in mind that a lot of the parts will interchange so you can tailor one to your car and use. http://www.britishv8.org/Articles/Bo...T5-ID-Tags.htm |
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