So I have a 1987 F-250 6.9L with the 4 speed transmission. I recently what I believe to be the synchro's in the transmission go, it won't drive in any gear for very long, and I have a 1992 7.3L with a strong 5 speed that I can use. I am curious if I can put the 5 speed into my truck and if I can will I need to change or get anything different? Or will it bolt up no problem?

 

<p>welcome to FTE</p><p>the 5 speed is a common swap into the 4 speed trucks. having a donor truck is the best, just take all the parts you need off it, and put them into the 87.</p><p>the only real issue i can see in using he 92 trans is it will not have a speedometer port in the tailshaft, and unless your trucks are 4X4 you will have to get creative to figure out how to get a working speedometer.</p><p>cheapest way would be a GPS speedometer.</p>

 

Both trucks are 4x4 so how does that affect it?

 

<p>put the 87 transfer case on the back of the 5 speed and you will be golden.</p>

 

That was my plan unless the transfer case decided to give out on me too. Thanks!

 

Where are you located? I may be interested in your old one.

You will have to move the old crossmember back a few inches,
Someone also said the five speed crossmember will bolt up and be in the right spot, this i do not know but might be worth looking into to save you the trouble. Your old transfer case will bolt to the five speed as well.

I would stick with your smf and just order a good clutch and pressure plate for it. Southbend has 12" kevlars for around $450
Shouldn ever make enough power to destroy it XD