replacing 4 speed with a five speed problem!
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replacing 4 speed with a five speed problem!
I have a B1986 F350 2WD Dually, with a 351 Windsor and a T-18 4- speed Borg Waner transmisson. Does any one out there know what 5 speed transmission type and model would replace this 4 speed T-18 with little or no alterations.
Post Fiend
Joined: Mar 2002
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From: Bonita Springs FL
Yes, the bellhousings are compatible, but I don't know if the T5 will take the 351's torque. Maybe it will - I just don't know for sure. If you look around, you can find a ZF 5 speed for less than $2000.
Edit: in fact, http://cgi.ebay.com/ebaymotors/ws/eB...906525240&rd=1
Edit: in fact, http://cgi.ebay.com/ebaymotors/ws/eB...906525240&rd=1
Last edited by andym; Jun 22, 2004 at 02:35 PM.
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Originally Posted by andym
Yes, the bellhousings are compatible, but I don't know if the T5 will take the 351's torque. Maybe it will - I just don't know for sure. If you look around, you can find a ZF 5 speed for less than $2000.
Edit: in fact, http://cgi.ebay.com/ebaymotors/ws/eB...906525240&rd=1
Edit: in fact, http://cgi.ebay.com/ebaymotors/ws/eB...906525240&rd=1
Laughing Gas
Joined: May 2004
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From: Dallas, TX, USA
Towing anything with a T-5 is a *bad* idea. They're not really all that strong, especially if you're not a very precise shifter.
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I really appreciate your inputs with high regard....but I really need to see some specs on these transmssions ....does any one know where I could find these at ? And also, what other tranamissions are compatiable with the 351 Windsor ?
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Laughing Gas
Joined: May 2004
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From: Dallas, TX, USA
They can't shift and they strip out the synchros, for starters. Second, they have no overtravel limiters, so if you are slamming it into gear and holding it you can bend shift forks (this is fixed by adding an aftermarket shift lever with limiters). Just go to the drags on Saturday or Sunday - for every one that blows T-5s on a regular basis, there's someone who's got innumerable runs on his T-5. It's a mixed bag. I've got 170K on the T-5 in my Turbo Z, and it's not been babied ever.
That said, a T-5 is not going to do much good on towing. 350-400hp and about 5000lbs GCVWR is about their limit before you start stripping teeth off the gears, even on the V-8 rated models. GM managed to get away with it in their S-trucks, but they have a pitiful towing rating anyway.
In short, put the T-5 in a car that's properly driven and it will go for a long, long, long time, but it's intolerant of some kinds of abuse and it has strict weight/load limits. It's a nice-shifting manual, and it's got a good aftermarket. It just doesn't belong in a truck or in any vehicle that's going to try towing something.
The T-5 is now made by Tremec Transmission Corporation. Here are the specs for the current and recent past models:
http://www.tremec.com/English/products/T-5.asp
That said, a T-5 is not going to do much good on towing. 350-400hp and about 5000lbs GCVWR is about their limit before you start stripping teeth off the gears, even on the V-8 rated models. GM managed to get away with it in their S-trucks, but they have a pitiful towing rating anyway.
In short, put the T-5 in a car that's properly driven and it will go for a long, long, long time, but it's intolerant of some kinds of abuse and it has strict weight/load limits. It's a nice-shifting manual, and it's got a good aftermarket. It just doesn't belong in a truck or in any vehicle that's going to try towing something.
The T-5 is now made by Tremec Transmission Corporation. Here are the specs for the current and recent past models:
http://www.tremec.com/English/products/T-5.asp
Last edited by Spktyr; Jun 24, 2004 at 02:15 PM.
Senior User
Joined: Jan 2003
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From: Safford, Arizona
Here is a link to some common domestic truck trannies.
http://www.motivegear.com/tech_info/...nny_guide.html
http://www.motivegear.com/tech_info/...nny_guide.html
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Joined: Jun 2004
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but of course MOST trans's will last a long if not beaten on or abused but that is not what we are looking for here, we are looking for that indestructable one, sure isn't a t-5 as isn't most trans but others will hold respectively longer.