what is the "shelf life" of a tranny

jeffnichols · 09-30-2003, 04:01 PM

ok so I bought a 91 mustang GT with the police interceptor trans, but the stang has been sitting for about 3-4 years with the heads and manifolds removed. there is trans fluid in the tranny but it has not been circulated through since the engine was half way removed. What is the posibility that the trans would be fine if it worked when the engine was torn apart?

billheis · 09-30-2003, 07:32 PM

I got one similar to that once and the part of the gear that was not in oil was rusted and pitted, but I'm in Jax Fl with lots of humidity. I'd pull top off and and look down in there.
Bill

rwhite65 · 10-01-2003, 01:42 AM

some of the seals internally could have gone bad (dried up), due to the lack of lubrication. If it is still bolted up...i would try putting the motor back together....putting the rear on jack stands, new oil,...and seeing what happens.
Worse thing is, you are going to have to end up rebuilding it anyways.
Ryan

crazypete · 10-05-2003, 10:34 AM

Apart from seals, though, would synchros and gears show any wear and tear from sitting? My old stang is at a wrecking yard nearby and it just occured to me that my transmission problems could be fixed by simply buying the fresh t5 back off the guy. I wrecked it 3 years ago and its been sitting out there ever since filled with nice redline.

rwhite65 · 10-05-2003, 10:48 PM

I would say that the T5 would be ok. After running it for just a little bit, any flash rust that had started if any, would clean itself off as you drove the car. I would just change the fluid after a few hundred miles. It probably has been fine sitting there for the last few years...that there is nothing to worry about.

09-30-2003, 04:01 PM	#1
jeffnichols Registered Member Join Date: Mar 2003 Location: chino hills, Ca Posts: 21	what is the "shelf life" of a tranny ok so I bought a 91 mustang GT with the police interceptor trans, but the stang has been sitting for about 3-4 years with the heads and manifolds removed. there is trans fluid in the tranny but it has not been circulated through since the engine was half way removed. What is the posibility that the trans would be fine if it worked when the engine was torn apart?

09-30-2003, 07:32 PM	#2
billheis Registered Member Join Date: May 2001 Location: Fernandina Beach, FL 32034 Posts: 178	I got one similar to that once and the part of the gear that was not in oil was rusted and pitted, but I'm in Jax Fl with lots of humidity. I'd pull top off and and look down in there. Bill __________________ Bill Heiser 90 Convertable 5.0 LX, ported E7s w/ THumper valve job, TFS street, FR 65mm TB, B cam w/1.7 cobra rockers, kirban AFPR, Mac CAI, Mac Headers, off road h, 3 chamber flows, Crane ign. box, 3:73s, Art Carr AOD & 2600 converter

10-01-2003, 01:42 AM	#3
rwhite65 Ride Hard Join Date: Oct 2000 Location: Wyoming IL Posts: 1,094	tranny life some of the seals internally could have gone bad (dried up), due to the lack of lubrication. If it is still bolted up...i would try putting the motor back together....putting the rear on jack stands, new oil,...and seeing what happens. Worse thing is, you are going to have to end up rebuilding it anyways. Ryan __________________ 65 Fastback 91 roller 306, H/C/I AOD-Bauman, PI Stallion, 4.10's and traction loc 04 Grand Cherokee Freedom Edition 79 Ford F-250 4x4 - Restored

10-05-2003, 10:34 AM	#4
crazypete Registered Member Join Date: Sep 2002 Location: Boston Posts: 592	Apart from seals, though, would synchros and gears show any wear and tear from sitting? My old stang is at a wrecking yard nearby and it just occured to me that my transmission problems could be fixed by simply buying the fresh t5 back off the guy. I wrecked it 3 years ago and its been sitting out there ever since filled with nice redline. __________________ 91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior

10-05-2003, 10:48 PM	#5
rwhite65 Ride Hard Join Date: Oct 2000 Location: Wyoming IL Posts: 1,094	I would say that the T5 would be ok. After running it for just a little bit, any flash rust that had started if any, would clean itself off as you drove the car. I would just change the fluid after a few hundred miles. It probably has been fine sitting there for the last few years...that there is nothing to worry about. __________________ 65 Fastback 91 roller 306, H/C/I AOD-Bauman, PI Stallion, 4.10's and traction loc 04 Grand Cherokee Freedom Edition 79 Ford F-250 4x4 - Restored

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