Thread: Brakes on 3.0 vs 2.7

Originally Posted by Graeme

He's lucky that his e-diff uses a different housing.

Sounds like you're eyeing off the D4 as working parts bin...

His 19" rims fit the RR - had them on instead of the rubber band 20" before going up a size or 2.

Originally Posted by Graeme

I used the 3.0 brakes for nearly 45K kms before fitting the 2.7s and apart from the vehicle trying to throw me through the windscreen the first time the 2.7 brakes were used, I never considered the brakes to be different. However I only towed a 1.2T van and only country driving where braking is mostly optional.

Great information. I think we have pushed this topic along really well now. My takeaways are;

Little real-world braking difference (which seems to make sense)
Only front brakes need modification

I'd just love to know if it was in fact LRs intention to block the 18" wheels to be fitted as would seem no engineering challenge to make suitably sized calipers for the 3.0D larger discs. A good project manager would have told the bright-spark engineer to go back to the drawing board on any other day.

Agreed - seems like such a simple engineering change to remove what some consider a 'weakness' - ie, the inability to fit 18" OEM wheels on a 3.0.

I would put this in a similar category to the rear plastic trailer plug cover - where a better solution must surely be possible with just a LITTLE more thought...

Originally Posted by PerthDisco

I'd just love to know if it was in fact LRs intention to block the 18" wheels to be fitted

The original rear calipers with their blobs of metal hanging out the ends were obviously made to prevent 18" rim fitment.

Correction: The 3.0 rear brackets have the blobs hanging out the ends which do not interfere with 18" rims. The alloy calipers themselves are too bulky, possibly needing more metal than cast iron to have the same strength but also possibly to prevent 18" rims..

Noting we have many great minds here, and some with more time than others...

Has this solution been investigated;
Custom front brake calipers from the likes of Harrop or Wilwood (etc)

My idea may have immediate flaws as I myself have not spent alot of time considering it or researching it.

Cheers,
Adam

Originally Posted by kreecha

Noting we have many great minds here, and some with more time than others...

Has this solution been investigated;
Custom front brake calipers from the likes of Harrop or Wilwood (etc)

My idea may have immediate flaws as I myself have not spent alot of time considering it or researching it.

Cheers,
Adam

Dunno about the more time bit, but here goes...
I have looked at this path. Looked at Willwood & AP Racing calipers. I wanted to keep the factory rotor. Key issue is clearance to the wheel spokes as the wheels are such a big + offset. Diameter wise it comes down to less than 5mm clearance. If only the rotor was 350dia (vs 360mm), all would fit well....

Originally Posted by cjc_td5

Dunno about the more time bit, but here goes...
I have looked at this path. Looked at Willwood & AP Racing calipers. I wanted to keep the factory rotor. Key issue is clearance to the wheel spokes as the wheels are such a big + offset. Diameter wise it comes down to less than 5mm clearance. If only the rotor was 350dia (vs 360mm), all would fit well....

CJC, Thanks for comment.
Did Wilwood or AP offer direct fit replacements?
Were further adaptations/changes required?
When you speak of less than 5mm clearance, is that with the Wilwood or AP calipers and the 360mm discs?
What was the clearance to wheel spokes?
What factory 18” wheels did you use to do the testing?

Cheers, Adam