Four spd to a Five spd...
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Joined: Jul 2006
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From: Taylorsville, KY
Four spd to a Five spd...
Got a question similar to Desertwolf's. I have the 4 spd manual with the stump puller low gear in it in 84 F-250 4x4. I'm thinking about swapping it out for a 5 speed so I can have the OD out on the highway. Is there one that will bolt to my bell housing and accept my trans case? I have the 300 6 banger. I also need to be able to keep as low a first gear as possible because I do occasionally need it to pull stuff. Thanks for any answers you can give me.
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You might also want to consider the four speed overdrive. The four and the five have different final gear ratios, according to someone who posted recently. I know the four has a .70. I think he said the five had a .80 ratio. I have the four, turn only 1600 rpm at 60 mph (with a 3.08 rear). My highway mileage has been around 19 lately and thats with the extra weight of a Supercab and long bed. It's not a stump puller, but if I'm towing something over 1500 lbs I'll just stay in third gear. That's a 1.00 ratio, same as your fourth gear.
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You can get a ZF five speed from a 88-96 F-250. It still has a good low gear and a decent overdrive at .76 I think. It is a easy swap just remember to get the crossmember for the transmission so it will bolt in as they are different. All you should need is a new clutch hose from a 88-96 model and new slave cylinder, caution ford used 2 different clutch hoses, make sure you get the one for the slave cylinder you get. You may need to get your driveshaft shorten/lenghtend depending on your current set up. But really a very easy swap.
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Joined: Jul 2006
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From: Taylorsville, KY
Thanks for the info. I'm gonna start shopping the junkyards around my area and see what I can come up with. I've driven trucks with both of these trannies for work and I like both. See which one fits my needs. I had forgotten about that 4 speed. With the gearing this truck has in the axles, it might be a viable option. I'll let ya'll know how things go over the next few months.
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