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Old 03-11-2003, 04:45 PM
dbrown13 dbrown13 is offline
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M5odr2

Hey Gang,
What is the max input shaft torque this trans can handle? I was thinking of using one behind a somewhat hopped up
351W. Heads have been ported, Edelbrock Performer intake, 280/290 cam, 750 AFB, shorty headers. Fairly strong
engine. Thanks for the input.
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Old 03-11-2003, 06:23 PM
StrangeRanger StrangeRanger is offline
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M5odr2

Ford doesn't offer that tranny behind the 351. It has some durability issues when used behind the 300 and the 302, so I'm guessing it won't live long behind a warm 351. If you want to put an aftermarket tranny behind it, you may want to look at a Tremec 3550 or TKO, but you may need to take a look at your rear end ratio to make it work the way you want. To compare the two trannies, take a look at http://www.fordsix.com/tech/trucktranny/trucktranny.htm
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Old 03-11-2003, 07:02 PM
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M5odr2

I would be hesitant to put a 3550 or TKO in a truck. They can handle the input torque without a problem, but my concern would be if they could handle the weight of a truck. They would probably do fine for pulling around an empty truck, but once any weight gets in it or hitched to the truck, I don't know if they could handle that. I think both the 3550 and the TKO are rated around 6000 GCWR, which is just more than the weight of a regular F150. Hope this helps out.
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Old 03-11-2003, 07:38 PM
StrangeRanger StrangeRanger is offline
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M5odr2

I've never seen a published gross weight rating for a Tremec 3550/TKO, have you got a source for that number? As for weight it depends on the truck. My 96 regular cab, short box, 2WD 300 weighs in just under 4000#. A stretch cab, long box 4WD 351 is going to chip real hard on that 6000# number. With that cam, I'm assuming he's way more interested in hauling a** than in hauling loads and for that application, the Tremec works just fine
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Old 03-12-2003, 08:12 AM
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M5odr2

Both the regular 3550 and TKO I found here: http://www.tremectransmissions.com/E...s/TR-3550.asp. I agree, if it's mostly for performance, and he's not gonna do any hauling of anything besides an empty truck, these would probably work ok.

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Old 03-12-2003, 10:51 AM
dbrown13 dbrown13 is offline
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M5odr2

for the input guys, I really appreciate the info. I have the engine I described in a 83 Mustang 'vert, and was maybe thinking about building a similiar engine for a 90-91 short box/short cab F150. I currently have a 91 F150XLT with a 300/six , M5OD, and wouldnt modify it at all. Its just too
solid. Maybe find another as a project truck.......hmmmmmm
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Old 03-12-2003, 10:51 AM
 
 
 
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