mx5 diff problems

[Numplumb]

Hi StruveD thanks for that information, can I ask do you hang the diff underneath the diff cage like we do over here and what do you use under the bottom poly bush? I was thinking of using a large washer approx 3 and half inch.

I was looking at a forum Locostusa and on a build blog Johns he mounted his above the diff cage and made poly inserts at the front have you seen that build blog?.
Regards Mick.

[StruveD]

Originally Posted by Numplumb

Hi StruveD thanks for that information, can I ask do you hang the diff underneath the diff cage like we do over here and what do you use under the bottom poly bush? I was thinking of using a large washer approx 3 and half inch.

I was looking at a forum Locostusa and on a build blog Johns he mounted his above the diff cage and made poly inserts at the front have you seen that build blog?.
Regards Mick.

So the bushing kit I purchased is from a company called "energy suspension". They have a kit specifically for the miata diff and its a 2 piece poly set with a crush tube/sleeve. The upper portion is pressed into the carrier, and the lower portion just slips over a portion of the crush tube. You then use the factory washers to press everything together and hold it in place. See the pictures below.

[jason 82]

Cheers for that, when people use these bushes, are they getting breakages of the diff arms at all please ? I have ordered my gbs diff mounting kit which is coming in at a whopping £150, but with this bracket kit, you cut the arms off the diff completely. I don't know how this works exactly, because when I went on my tour of gbs, there was no diffs available to look at, which was a bit of a shame really. But, if your bushing at £35 pounds each ( if my conversion rate is right ? ) , will be a much better deal. I know you have to include shipping, but still would work out a lot cheaper.

[Short]

Looking good Struve. 1 thing I will suggest, where your nuts are at the bottom of the diff nose, id put a plate approx 25x75x5mm (1inch x 3 inch x 4g) with 2 holes in to take the nuts. It will spread any load over more of the diff, reducing the chance of cracking at the hole.

[Numplumb]

They look good but I have already bought mine from Flow-Flex they are two pieces with crush tube like the top section of your ones ie flat that is why I was thinking of the large washer underneath because they don't dish in so I think that would be okay what do others think?.
Regards Mick.

[Short]

That's what I was going to do with mine. Use the floflex bush and tube, and make a large 'washer' the same diameter as the bush, around 5mm thk. You could use a standard washer (as long as the washer is bigger than the crush tube) but I would like the look of a chunky one!

[StruveD]

Originally Posted by jason 82

Cheers for that, when people use these bushes, are they getting breakages of the diff arms at all please ? I have ordered my gbs diff mounting kit which is coming in at a whopping £150, but with this bracket kit, you cut the arms off the diff completely. I don't know how this works exactly, because when I went on my tour of gbs, there was no diffs available to look at, which was a bit of a shame really. But, if your bushing at £35 pounds each ( if my conversion rate is right ? ) , will be a much better deal. I know you have to include shipping, but still would work out a lot cheaper.

I couldnt find any information on anyone having a breakage that wasnt in a accident. The only negative information was with the use of aluminum bushings and the excessive noise. With the poly units being a nice compramise between the stock rubber and the aluminum set. As for cost, yes about £35 plus another $30 for the shipping. Can you get access to the US version of amazon.com, shipping might be less going through them.

[Davidbolam]

Originally Posted by StruveD

I couldnt find any information on anyone having a breakage that wasnt in a accident. The only negative information was with the use of aluminum bushings and the excessive noise. With the poly units being a nice compramise between the stock rubber and the aluminum set. As for cost, yes about £35 plus another $30 for the shipping. Can you get access to the US version of amazon.com, shipping might be less going through them.

Noise shouldn't be a problem in a roadster!! The noisier the better!!

Are these designed to be used with the mounts that come on the MX5? The ones that sit under the diff arms?

David

[StruveD]

Originally Posted by Davidbolam

Noise shouldn't be a problem in a roadster!! The noisier the better!!

Are these designed to be used with the mounts that come on the MX5? The ones that sit under the diff arms?

David

No the replace those with those 2 big poly pieces and just reuse the big washers.

[Numplumb]

75mm x 5mm disc on eBay 2 off for around £5 and drill hole in centre is what I have decided to do with mine