Five Lug Conversion

this was pretty much the first mod i did to this car. i've had my other 4000 for a while and have already done most other upgrades and changes, but this one i wanted to go 5lug on and i had most of the parts, so i got started right away :)

Rear 5lug Hub Conversion

First thing first, a parts list.

2-4kq rear wheel bearings 75mm tall x 37mm wide x 42mm center bore.
2- 86-88 5000 quattro hubs. front and rear are the same on the 5ktq

the rear is pretty easy. just remove the strut and press the wheel bearing out as if you were replacing the wheel bearing only, but when you put it back together, put the 5ktq hub in place :)

all you have to do next, is drill the stock rotor out to 5x112 and put everything back together.

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Front 5Lug Conversion

parts list

front struts from an 80/90 fwd or quattro with the 75mm wheel bearings
19mm ball joints to fit the new struts
rear axles from a 4kq
2- rear 4kq wheel bearings as used above
2 5ktq hubs
4mm worth of 75mm O.D. shims
2mm worth of 42-45mm I.D. shims

first step is to remove the stock strut assemblies and axles. take the new B3 chassis 80/90 struts, remove the lower half for ease of working on it in the press, and remove the bearings and hubs. on my struts, i couldn't find a retaining clip that holds the bearing into the strut housing, so i just pressed it out, no issues.

next you take the 2-3mm of 75mm shims and place them inside the strut housing so when the new bearing is pressed in, it will bottom out 2-3mm sooner, pushing the hub farther outward to take up the distance lost between the stock B3 hub and the 5ktq hub.

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then put 2-3mm worth of shims on the 5ktq hub shaft and press the spindle assembly down on it tight.

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once it's all done it will look like this from behind..

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and will space the hub out so there's no interference between the hub and the spindle (lower strut housing). the 5lug hub is on the left, and the 4 lug on the right)

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next you need to grind the back of the strut housing out a little to clear the CV joint since it now sits a few mm's further inward and will contact the housing.

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you'll also need to change out the ball joints to the 10mm shaft units from the later 80/90 cars.

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Brakes

if you're cheap or don't have money to upgrade to a big brake setup, you have two options.

the stock 80/90 brakes, or B5 A4 brakes. these are 288mm in dia. and will bolt on. you will need to use some washers between the caliper carrier and the spindle to get the spacing right though.

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Axles

lastly, you'll need the rear axles as they have the larger outer CV splines that work with the 5ktq hubs. you take the pass. rear and put it in the drivers side front, and the drivers side rear and put it in the pass. side front. easy as pie :)

and when you're all done, you should have something that resembles this...

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this was taken the night i finished it up 8)

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this is with the new used 205/55/15 kumho tires my buddy got me from his work (thanks dan ;)

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Map
Page 1 : Main Page
Page 2 : Starting Out
Page 3 : You are here ;)
Page 4 : Engine Conversion