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The Flatty 4 lug to 5 lug thread...


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If anyone has tips on doing this, please reply. Also, if I left anything out....you know...Im just going to put up mostly pictures of my swap....

 

In the begining......(actually, the first day I got it, May 26, 2008)

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09815.jpg

 

-Parts needed from the widebody:

 

-Front(THE FOLLOWING PARTS DIFFER FROM WIDEBODY TO FLATBODY) - control arms, strut rods, steering arms, lower ball joints(was easier to just swap over, dont think there is a difference though), outer tie-rod ends, strut assemblies+inserts, hubs/bearings/brakes(calipers are the same)/caliper bracket, wheels(duh)

 

-Rear - hubs(I read you can use just the hubs, but it was easier for me to swap over the whole hub/bearing assembly.), brakes(calipers are the same)/caliper bracket, wheels (I also swapped in the LSD+6 bolt axles)

 

****DONT FORGET TO CHANGE OUT THE 4 LUG SPARE WHEEL!!!!

 

Differences:

sorry, didnt snap a pic of the strut rods, THEY ARE DIFFERENT!

 

sway bars the same, but I had some STs ready to go in...

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09938.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09950.jpg

 

control arms(observe the ball joint and sway bar holes, left-flatty, right-widebody)

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09927.jpg

 

outer tie-rod ends(length, widebody is longer)

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09930.jpg

 

steering arm(widebody in the foreground, slopes down/flatty in the background is almost straight)

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09929.jpg

 

axles(they should be the same, but I felt this car needs some LSD and 6 bolt lovin!)

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09957.jpg

 

*front struts(strut housing to spindle angles are wider on widebodies(sorry, no pic)

front brakes(bigger rotors , hub designs completely different)

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09923.jpg

 

rear brakes(bigger rotors)

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09952.jpg

 

idler arms are different, but you dont need to change them

widebody:

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09932.jpg

 

flatty:

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09933.jpg

 

 

Currently:

Running SHP wheels(that need to be redone) front and rear(wrong size tires in the back though, too big)

Need to cut/roll the fenders because they DO SCRAPE! Also needs an alignment...maybe a corner balance too....

 

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09453.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09467.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09455.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09458.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09456.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09457.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09469.jpg

 

Anyone else? Im not the only one!!

Edited by SFBMX88
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Saw this rolling down the street last year. It motivated me more to do this.

 

Looks like he only swapped the front hubs and brakes though(front wheels tucked into the body more).

 

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC07458.jpg

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man your flatty is sweet.

rear 8

http://i154.photobucket.com/albums/s263/aiche_photos/855%20Flatty/iojoij006.jpg

...but i cheated cause my flatty came with 5 lugs :sunglasses: i have a set of front shp's for the rear and front 7's for the front i'm currently polishing

Edited by IntercooledFlatty
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Ha, all that brake dust on there confused me...

 

I thought you had some 85.5 5 lug style on there, then I switched to a different computer I could see the difference.

 

-Robert

Edited by Komeuppance
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One thing to add, I used to have 245/50 in the rear, and they rubbed......I cut the lip and went to 245/45, and they were fine.....until I lowered the car, then they rubbed............Right now, I'm using 225/45 on the rear and everything's fine........

I'd like to move out my fronts a little so they can line up with the fender better........BUT I'm torn between getting wheel spacers and longer studs, OR getting front 8in rims.. :confused0024:

 

http://img212.imageshack.us/img212/7845/rebuildpics081od1.jpg

 

http://img256.imageshack.us/img256/9339/rebuildpics080ac6.jpg

 

Zack

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Just a side note here.

 

The lower diff assembly is LSD, the upper is an open diff. Their overall length seems to be the same, but the LSD assembly has a shorter torque tube/longer diff housing, where its the opposite with the open diff. Its my understanding that non-abs cars had open differentials.

 

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09949.jpg

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Awesome! But could you have just put the 5 lug hub on the front spindles and the rear spindles in the flatty carriers?

 

 

You could. But I think it will come out looking like this: Large gap from front wheel to fender...rear makes no difference...

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC07458.jpg

 

Where as this is near flush, AND RUBS!!!

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09469.jpg

Edited by SFBMX88
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Forgot to mention, RIP to my 88 donor car. It was the very first car I bought, and provided me three years of semi-reliable service. By the end, it was merely a basket case project that I didnt have much time or money for due to financial responsiblity(opening a new business last year). You will be missed!

 

 

Going off topic here, but...

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/Estarion4.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/water.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/hayDRIFT3.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/MVC-057S.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/MVC-063S.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/PICT0072.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/PICT0064.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/PICT0079.jpg

 

ANYBODY WANT A 4-LUG WIDEBODY CHASSIS?

 

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09422.jpg

Edited by SFBMX88
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  • 3 weeks later...

Got the proper size tires in the rear(245/45r16), but still need to lower it/roll the fender....

 

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09850.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09851.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09852.jpg

Edited by SFBMX88
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Mine was a complete rear subframe assembly from an 86 TSi swapped onto my 87 LE. the fronts I swapped the hubs and caliper brackets. 7" wheels front and rear. This sits on ST springs. Sold it a month ago and miss it dearly lol

 

 

http://i9.photobucket.com/albums/a86/AndyW_/IMG_0004-1.jpg

http://i9.photobucket.com/albums/a86/AndyW_/InternetExplorerWallpaper.jpg

http://i9.photobucket.com/albums/a86/AndyW_/IMG_0302.jpg

http://i9.photobucket.com/albums/a86/AndyW_/IMG_0282.jpg

Edited by AndyW
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does the back sit higher than the front? That tire looks better but for some reason you still seem to have a lot of space above the tire.

 

Yea, its still on the stock springs in the rear.

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  • 2 weeks later...

Finally got around to lowering the rear...

 

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09984.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/ultraspeed/DSC09985-1.jpg

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  • 1 month later...
  • 2 years later...

After being able to finally drive my flatty for the first time, I discovered that it needs both rear differential mounts...BANG BANG. Hah, It's also a non-LSD car. I've got an 87 TSi rear subframe sitting here collecting dust.

 

Will this subframe bolt right up? I see AndyW did it....

 

My real question is, I am not a real big fan of TSi wheels on a flatty. So, once the TSi subframe is installed...how much of a job is it, to swap the 4 lug hubs into the TSi subframe?

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should be able to just swap the flatty's hub carriers over (easier than swapping the hub, since it requires 300+ lb-ft torque to undo), since they're both the 4 bolt half shafts, not sure if the spines into the diff are different (shouldn't be)

 

The 4-bolt half-shafts are thinnner and have less splines on them than the 6 bolt ones. I've swapped the outer and inner rear hub parts along with the diff. and half-shafts and it WAS fun to break open, but nothing a 6ft breaker bar pipe can't fix :)

 

Zack K.

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im getting a 83 and im really wanting to do this but im not sure if i can simply unbolt the rear struts and 4 bolts holding the entire assembly (rear lsd,brakes , subframe and all) and simply install a entire 88 starion rear assembly in to the 83. could i do this without modding anything? or am i opening a can of worms? need help for this winter project any info would be great
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im getting a 83 and im really wanting to do this but im not sure if i can simply unbolt the rear struts and 4 bolts holding the entire assembly (rear lsd,brakes , subframe and all) and simply install a entire 88 starion rear assembly in to the 83. could i do this without modding anything? or am i opening a can of worms? need help for this winter project any info would be great

 

Yes, you can with the above mentioned parts (don't forget different wheels,lol)I'm not too sure about the torque tube/driveshaft lengths or the auto/manual driveshaft swap.

 

Zack K.

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