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Old August 28th, 2013, 04:59 AM   #1
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Default winter project..... possible end of my yj with s wheeler willys build.

I have a 91 yj with a pile of miles on it.
Newer stock front leaves on all 4 corners
Tummy tuck
Stretched a total of 6"
Ford8.8 / d30 (both rebuilt in the last year)
Rebuilt ax15 and 231j.

Body is nasty, I've patched the holes and fixed body mounts but its warped. Getting rusty again and in need of a lot of attention.
Frame is rotten and has been repaired a bunch of times. Bent too!
My 1/2 ton won't pull it.

I was planning on stripping it, building a frame for it and sourcing a better tub or repairing mine this winter. Now I'm thinking that if I'm building a frame and buying a tub I might as well build whatever I want.

Carbed 318 with my ax15, 231j/, 8.8, d30/44 combo in a 1940s Willy's with a coil over 4 link rear and 3link front.

Looking for a bit of direction. Any constructive input is welcome.
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Old August 28th, 2013, 10:36 AM   #2
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After reading this again I would like to add a bit.

I'm not a hard core Wheeler, I do a lot of 2 tracking but and visit a park ocasionaly. My yj has taken me through and over everything I have wanted it too, I'm very pleased with its limits and do NOT expect or desire any more. 90% of the miles this build will drive will be on road, Ill be driving it to work a lot in the summer as well as weekend joy rides.

Ride decent (my yj is up to par)
Axle wrap is not acceptable (hence the links front/rear)
Must have some gittyup! 318 should be plenty, my clapped out 4.0 is plenty in the yj)
Comfortable seats. I'll be building a very simple cage to attach my new buckets, my run harnesses)
Led turn signals/brake lights
Cruise 60 like a champ (axles have 4.11s -w/35s it should be good) will a will us windshield frame handle it?)

What is this thing going to look like with yj width axles under it? Will wheels with a lot of back spacing be enough to compensate for the extra width?
Will I have space to run coils/coilovers/air shocks w/ links under this? Will it be a nightmare? I would like to keep it pretty low w/ some stretch in the front.
It will have power steering and brakes. With ttrue tie rod ends not heims.
How goofy is thing going to be with comfortable bucket seats? I'm only 210lbs 5'11".

I'm developing a build plan, what should I include/exclude? I have done a lot of reading/research and have surfed several build threads.
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Old September 10th, 2013, 02:51 AM   #3
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I'm assuming you are looking to do a flatfender body?

Axles will be a bit wide for a flatfender but not overly so. Check out builds on Pirate in the willys section. Specifically Meiser's, YJeeper's, and euroford's builds. WJeeper is doing almost exactly what you want with a different drivetrain and will give you an idea on the what it could look like.
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Old September 10th, 2013, 01:23 PM   #4
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I will see if I can find some of my old build thread pics. I did a lot of work on this.

Understand, a flatfender is SMALL. Your big challenges:

1) fitting a V8 under the short low hood. Keeping it as low as possible helps. The grill is set back so far, its hard to get any driveshaft length. I would be looking at stretching the rear axle back a foot and comp cutting it.

2) Fitting the shocks. Air shocks should fit, coilovers might get tight. I had mine setup for 2.0 air shocks and a 62" wide front axle. I was at 59" wide and it didn't fit well. The YJ axle is I think 60.625". The issue is when you flex the axle, the top of the tire moves up and in, and tends to hit the shock. So you have to mount the shows as inboard as possible, at least on the top. Not a ton of room to work with.

3) Fuel tank. You'll likely need to push the rear axle way back, which wipes out gas tank space. Can go with something in the back, or under the front seat.

I was going with a fuel injected 4.3 / TH350 / Dana 300, and I think thats a perfect combo for a flattie. 2650rpm @ 65 mph on 35s, thats just fine. Lighter, shorter, and easier to wheel. There are carbed versions as well. Easy enough to get 200-225 hp out of them.

It can certainly be done. I was 3/4 of the way there, but then some family-size changes caused me to switch directions. I had toyota axles, but the D30/8.8 would be fine too.
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Old April 9th, 2014, 10:35 AM   #5
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I found that a 302 ford is no longer or tall than an 134 F head from end of bell housing to the end of the water pump. At only 18 inches valve cover to valve cover. You go with a T150 trans with D20 transfer case the trans will bolt up the trans still makes a short package. I have put one in a FC150 which has a shorter rear drive shaft then a CJ5. I also but one in my CJ5 and it looks tiny compared the 304. IN the CJ the trans and transfercase are in stock location. I picked up a engine at the junk yard for $200 and it turned out to be a fairly fresh rebuild.
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