Spindle swap? Yes? NO? Maybe?
#1
Pro
Thread Starter
Spindle swap? Yes? NO? Maybe?
Ok, looking at getting new ball joints on the OB. But I was thinking a little farther forward on the idea and maybe someone has done or attempted this.
Can a later model 928 Spindle be used on a OB 928?
Looks like I would need to upgrade breaks and all hardware, would I need to swap A arms and steering as well?
Any input would be great, unable to find any info.
Can a later model 928 Spindle be used on a OB 928?
Looks like I would need to upgrade breaks and all hardware, would I need to swap A arms and steering as well?
Any input would be great, unable to find any info.
#2
Administrator - "Tyson"
Lifetime Rennlist
Member
Lifetime Rennlist
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78-82 US cars are pre-"S" brakes.
I upgraded my 81 to brakes / spindles from an S just for the brake upgrade, same control arms.
You can also upgrade to S4 spec (86.5-95) to gain the even larger brakes. This will also require replacing the upper / lower control arms from an S4 since they are shorter on the later cars.
I upgraded my 81 to brakes / spindles from an S just for the brake upgrade, same control arms.
You can also upgrade to S4 spec (86.5-95) to gain the even larger brakes. This will also require replacing the upper / lower control arms from an S4 since they are shorter on the later cars.
#3
Pro
Thread Starter
78-82 US cars are pre-"S" brakes.
I upgraded my 81 to brakes / spindles from an S just for the brake upgrade, same control arms.
You can also upgrade to S4 spec (86.5-95) to gain the even larger brakes. This will also require replacing the upper / lower control arms from an S4 since they are shorter on the later cars.
I upgraded my 81 to brakes / spindles from an S just for the brake upgrade, same control arms.
You can also upgrade to S4 spec (86.5-95) to gain the even larger brakes. This will also require replacing the upper / lower control arms from an S4 since they are shorter on the later cars.
#4
Rennlist Member
78-82 US cars are pre-"S" brakes.
I upgraded my 81 to brakes / spindles from an S just for the brake upgrade, same control arms.
You can also upgrade to S4 spec (86.5-95) to gain the even larger brakes. This will also require replacing the upper / lower control arms from an S4 since they are shorter on the later cars.
I upgraded my 81 to brakes / spindles from an S just for the brake upgrade, same control arms.
You can also upgrade to S4 spec (86.5-95) to gain the even larger brakes. This will also require replacing the upper / lower control arms from an S4 since they are shorter on the later cars.
#5
Team Owner
I have an S4 front suspension for sale,
you just add the S4 calipers includes upper and lower control arms and spindles , front struts with red Boge shocks, ABS hubs and the ABS sensors from an 1986.5, 600.00 plus shipping
you just add the S4 calipers includes upper and lower control arms and spindles , front struts with red Boge shocks, ABS hubs and the ABS sensors from an 1986.5, 600.00 plus shipping
#6
Nordschleife Master
That's a deal on the S4 front (minus breaks) The calipers aren't cheap. What wheels are you running?
And what will be needed to get good front/back balance with the stock OB rear brakes?
And what will be needed to get good front/back balance with the stock OB rear brakes?
#7
Pro
Thread Starter
I'll keep the $600 price in mind for the front end. Long way to ship from PA to AZ.
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#8
Administrator - "Tyson"
Lifetime Rennlist
Member
Lifetime Rennlist
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Ok, now you are making me think.
I thought there were two distinct upper arms. 78-86, and 86.5-95. I'm not as familiar with the 85/86 (pre 86.5) stuff though. I thought they were all "S" until the S4 stuff came into play.
I'm digging through parts numbers now, I know better than to go all from memory on this stuff but time to time I get it a go!!
I thought there were two distinct upper arms. 78-86, and 86.5-95. I'm not as familiar with the 85/86 (pre 86.5) stuff though. I thought they were all "S" until the S4 stuff came into play.
I'm digging through parts numbers now, I know better than to go all from memory on this stuff but time to time I get it a go!!
#9
Pro
Thread Starter
Ok, now you are making me think.
I thought there were two distinct upper arms. 78-86, and 86.5-95. I'm not as familiar with the 85/86 (pre 86.5) stuff though. I thought they were all "S" until the S4 stuff came into play.
I'm digging through parts numbers now, I know better than to go all from memory on this stuff but time to time I get it a go!!
I thought there were two distinct upper arms. 78-86, and 86.5-95. I'm not as familiar with the 85/86 (pre 86.5) stuff though. I thought they were all "S" until the S4 stuff came into play.
I'm digging through parts numbers now, I know better than to go all from memory on this stuff but time to time I get it a go!!
From what I have looked at, I should be able to swap, lower ball joint, all breaking hardware, and spindle. This sounds to simple.
#10
Rennlist Member
If you swap 86- spindles with S4 ones you will have more negative camber than normal as the upper a arms are shorter. Popular with some racers.
If you want to upgrade to S4 spindles you will need to swap the entire suspension, the racks is the same so that you can keep, but everything else must go.
Otherwise if you just want S4 brakes, get the adapter brackets and 993 rotors.
If you want to upgrade to S4 spindles you will need to swap the entire suspension, the racks is the same so that you can keep, but everything else must go.
Otherwise if you just want S4 brakes, get the adapter brackets and 993 rotors.