bought a ZF today
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Joined: Jun 2012
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From: Mims, FL
bought a ZF today
I finally scored a decent used ZF-42 trans with attached transfer case, both driveshafts, mount + crossmember, both shifters, cab "hump" panel where the shifter goes through, clutch master + slave, pedals, SBF flywheel, and clutch/pressure plate.
This is for my '85 F150 4x4 currently with a 300 six, NP 435 trans, and NP 231 transfer case.
I have a replacement 300 that I'm rebuilding and had planned to put it in before spring. I was looking through Craigslist and came on this setup. It is from a small block (351) F250 so my 300 will fit. I won't be using the flywheel that came with it of course, but I like that I have the clutch so can see how/if it fits my stock flywheel (don't see why not). I may end up using this one as it looks good.
I figure to put the same package together with my old parts on Cragslist and get some of my money back, so the upgrade shouldn't cost that much in the end.
I'll take some pics and post. It's all greasy right now, so need to dowse it pretty good and go to a self serve car wash and hose it down.
This is for my '85 F150 4x4 currently with a 300 six, NP 435 trans, and NP 231 transfer case.
I have a replacement 300 that I'm rebuilding and had planned to put it in before spring. I was looking through Craigslist and came on this setup. It is from a small block (351) F250 so my 300 will fit. I won't be using the flywheel that came with it of course, but I like that I have the clutch so can see how/if it fits my stock flywheel (don't see why not). I may end up using this one as it looks good.
I figure to put the same package together with my old parts on Cragslist and get some of my money back, so the upgrade shouldn't cost that much in the end.
I'll take some pics and post. It's all greasy right now, so need to dowse it pretty good and go to a self serve car wash and hose it down.
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From: Mims, FL
Yeah, I was excited to find it. I've been looking off and on for some time and had resigned myself to continue the NP435 route.
It took 2 weeks to get together with the seller, and it was 2+ hrs away, but finally found a time today that we both could be there and I made the drive and got it loaded up.
My old F150 is pretty rough looking, which I like personally. I don't care about that as much as making sure the mechanicals are up to snuff.
It took 2 weeks to get together with the seller, and it was 2+ hrs away, but finally found a time today that we both could be there and I made the drive and got it loaded up.
My old F150 is pretty rough looking, which I like personally. I don't care about that as much as making sure the mechanicals are up to snuff.
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Joined: Jan 2001
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From: Virginia
I just checked car-part.com and they did not offer the zf in 86. Since that's the last year the pedals will interchange with 80-86 pickups, that means each time you score a zf setup, the pedals from the zf truck will not work and you have to make another special trip somewhere to get 83-86 4 speed hydraulic style pedals and use those.
Unless they got the pedals from a 86 down truck, those pedals you have will not work on your truck.
Unless they got the pedals from a 86 down truck, those pedals you have will not work on your truck.
Cargo Master
Joined: Oct 2005
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From: NJ
Sounds like he already had a 4 speed so pedals are not an issue. Pedals are specific for 80-86 trucks, tough there is no difference between pedals for a z bar or hydraulic setup.
Get one of the firewall braces, hydraulic will crack the firewall without it.
Get one of the firewall braces, hydraulic will crack the firewall without it.
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From: Mims, FL
Copy that, thanks. I'll definitely take a look at the firewall and how the hydraulic master mounts and fab it up a bit stronger.
Yes, I do now have a manual 4 speed so have that version of clutch/brake pedals. I'll take a closer look at any difference between them and the ones that came with the transmission and go from there. I didn't say in the original post, but these came from a '88 F250 with a 351.
It's still in the back of the truck as I've been degreasing it with overnight soakings of Purple Power and then trips to the car wash. Today's big project is to get that done, and build a cradle of some sort to put the trans/transfer case on so I can roll it around as needed until I can get it installed.
The 300 six that is going to power it all is blown apart right now too, so need to get hot getting that together so I can get the old stuff out, and new in. Pics later today, I promise!
Yes, I do now have a manual 4 speed so have that version of clutch/brake pedals. I'll take a closer look at any difference between them and the ones that came with the transmission and go from there. I didn't say in the original post, but these came from a '88 F250 with a 351.
It's still in the back of the truck as I've been degreasing it with overnight soakings of Purple Power and then trips to the car wash. Today's big project is to get that done, and build a cradle of some sort to put the trans/transfer case on so I can roll it around as needed until I can get it installed.
The 300 six that is going to power it all is blown apart right now too, so need to get hot getting that together so I can get the old stuff out, and new in. Pics later today, I promise!
Logistics Pro
Joined: Jan 2001
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From: Connecticut
This is the "small block" ZF correct?
It must have the Internal Slave cylinder.
If you have a External slave cylinder, this is for a "Big block" and will not fit a 300-six.
It must have the Internal Slave cylinder.
If you have a External slave cylinder, this is for a "Big block" and will not fit a 300-six.
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Logistics Pro
Joined: Jan 2001
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From: Connecticut
Quote:
Originally Posted by Ken Blythen View Post
The NP435 has a 1.062", 10-spline input shaft.
At least some ZF5's had a bigger diameter shaft (IIRC 1.25")......but maybe that was only the big block, and/or diesel versions.
This is correct.
The 4.9 & 5.8l ZF-5 pattern had the smaller 1 1/16 input shaft.
Measure and see if it is the 1 1/16"dia spline...
the 1 1/4" spline will not work on the six banger....
Originally Posted by Ken Blythen View Post
The NP435 has a 1.062", 10-spline input shaft.
At least some ZF5's had a bigger diameter shaft (IIRC 1.25")......but maybe that was only the big block, and/or diesel versions.
This is correct.
The 4.9 & 5.8l ZF-5 pattern had the smaller 1 1/16 input shaft.
Measure and see if it is the 1 1/16"dia spline...
the 1 1/4" spline will not work on the six banger....
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Posting Guru
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From: Mims, FL
Shouldn't the part number on the data plate I posted above say what it is?
E8TA - 7003 - TA
Regardless, I'm confident it's a small block ZF, wide ratio version.
FTE Legend
Joined: Nov 2015
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From: Angier, NC
Nice score when I get to that point on my project I will also look for one but 4x2.
What gear ratio is in your truck and do you know what it was in the truck the ZF came out of or know what they came with?
If your truck has say 3.08 or higher and that ZF came in one with say 4.10 you may not like the out come.
How have others dealt with this?
Dave ----
What gear ratio is in your truck and do you know what it was in the truck the ZF came out of or know what they came with?
If your truck has say 3.08 or higher and that ZF came in one with say 4.10 you may not like the out come.
How have others dealt with this?
Dave ----
Logistics Pro
Joined: Jan 2001
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From: Connecticut
Hmmmm, good point, I see it as THe ZF's 4th gear is 1:1 equaling the sp-4th, anything after that may be a bonus.
But your right, an OD gear if front of a 3:08 will be different than in front of a 4:11...
But your right, an OD gear if front of a 3:08 will be different than in front of a 4:11...
FTE Legend
Joined: Nov 2015
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From: Angier, NC
So others that have done this ZF swap how do the trany gears match between the ZF and the stock trany & what have they done for rear gears?
Is there a web site that shows the gear ratios of the small block ZF and the T19/T19 and the 3sp w/OD to compare them?
Why I asked is I went thru this on my 70 AMC Javelin that had a AMC T10 4sp and I installed a Ford WC T5. The T5 has a little lower first gear that was good because the T10 first was a little too tall so had to slip the clutch too much for my liking. Then with the 3.54 rear gear the car should have with a T10 and the OD gear of the T5 should make for a nice RPM running down the high way. From others that have done the T5 swap love it.
Dave ----
pedant
Joined: Jan 2008
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From: EXTREME southwest CT
I don't really understand the question.
4th in a ZF is the same as 4th in a T-18/19.
You have 24% overdrive.
Take the rpms at any given road speed and multiply by .76 to find what your new engine rpms will be.
Will this cause the engine to lug?
:2.75's or :3.00's it might be likely but there are many more factors, like tire size and whether you have a gutless 5.0.
There are dozens of online calculators. (Like any tire or transmission site) Just plug in your numbers.
4th in a ZF is the same as 4th in a T-18/19.
You have 24% overdrive.
Take the rpms at any given road speed and multiply by .76 to find what your new engine rpms will be.
Will this cause the engine to lug?
:2.75's or :3.00's it might be likely but there are many more factors, like tire size and whether you have a gutless 5.0.
There are dozens of online calculators. (Like any tire or transmission site) Just plug in your numbers.