Built 351w with an AOD - Ford Bronco Forum
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post #1 of 6 (permalink) Old 06-09-2019, 04:52 PM Thread Starter
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Bronco Info: 1987 Bronco, 351w, AOD, manual transfer case, manual locking hubs, around 3 inch lift.
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Built 351w with an AOD

I would like to know what a stock 87 AOD can take from a built 351w with I am guessing around 425hp. Transmission has around 90,000 miles on it. Have not moved it in close to 2 years and the old 302 then was running like crap so no tell how it ran. We replaced the valve body with a constant pressure one replaced torque converter, high capacity oil pan and earls oil cooler. I eventually want to get it rebuilt and beefed up but for when it is ready to drive I want to know what I can’t do.
Thanks- Griffin
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post #2 of 6 (permalink) Old 06-11-2019, 12:14 PM
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make sure the TV cable is adjusted correctly and it should be fine i would think. with that said there are no guarantees with Auto's. to many variables involved.

94 5.8/E4OD Edelbrock efi intake, jba headers, transgo shift kit. 6" PC stage II, 4.88 gears, front Aussie. Warn HS9500, custom bumper and sliders. RedHead steering and TieRod flip.
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post #3 of 6 (permalink) Old 06-11-2019, 12:27 PM
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He has constant pressure valve body, so TV cable non-issue. With those the TV cable is just for the shift point, it could break and the trans will be fine, though may shift extremely high rpm, I am not 100% sure what the constant pressure bodies do when this happens...
With that said, I would still be a little worried about the input shaft, and I would not do the 1-2-1 shuffle or let it go into overdrive when beating on it.
I think you will likely be at least "OK" with that setup though, maybe just try not do to any foot brake assisted launches. I think should be more then fine to break the new engine in.


Build Thread https://www.fullsizebronco.com/forum...8-project.html
Street Queen '92: 400hp/400ft-lb Roller 351W Built by Me, C6 Swap, 9" Swap, Corbeau Seats, Desert Bumpers, 4.10s, 33s
Sleeper Build '78: 2.5" Bypass Shocks, Deaver Springs, Full Roll Cage, Spool, 460, Hydro-Boost Brakes, Modded Duff Arms, Broader C6, Rust
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post #4 of 6 (permalink) Old 06-11-2019, 04:24 PM Thread Starter
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Bronco Info: 1987 Bronco, 351w, AOD, manual transfer case, manual locking hubs, around 3 inch lift.
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Thank you for the reply, I am working on installing a Lokar TV cable currently.
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post #5 of 6 (permalink) Old 06-12-2019, 09:50 AM
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Good luck with the Lokar stuff !
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post #6 of 6 (permalink) Old 06-14-2019, 04:58 PM
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That should last quite a while. Heat and band slipping is what kills it. If you are not towing super heavy and just driving around and just having fun on the street
it should last quite a while.
Synthetic fluid would be a very helpful addition.
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