Thread: Maxi/MR Automotive -49% low gears

And maybe Dave is looking at expanding his market and offering an alternative
And competition can only be a good thing

The man just asked a simple question, nothing more than what every 49% customer probably has asked. I think we are being a little (big) bit anal about this.

Have to agree with Slunnie, a simple question but some comments are getting borderline.

Copyright has little to do in this situation, its Patents law, more than that if there is a problem, it is not an issue of ours, it is a commercial issue between Aschroft Transmissions, Maxidrive and the licensee MR automotive if it exists at all.

AFAIK, Ashcroft's have done several runs of underdrives, so it may not be a problem at all, merely the cost of production for a slow moving assembly.

talk about blowing something out of proportion (insert rolling eyes)

Originally Posted by Barefoot Dave

Dave, forgive me if I am wrong, but isn't MR/MAXI your competitor?
Not quite kosher doing market research on their products through the forum, I would have thought
I am, of course, open to being corrected.
Cheers, Dave.

Hi Dave,

not at all, Warren at MR Automotive has bought some products from us and I am looking at buying a low range set from him for a customer of mine,

it's no more complicated than that !!

thanks for the replies, I will let the customer know to expect some additional noise,

thanks again

Dave

Originally Posted by Slunnie

The man just asked a simple question, nothing more than what every 49% customer probably has asked. I think we are being a little (big) bit anal about this.

X2 what he ^ said.

Originally Posted by uninformed

John, Im not 100% but I dont think there ever was a 40% reduction set. Just the 30% first and then MD added the 49%.

Ill see what I can dig up.

Dave, do you want me to make a sound recording and email it to you?

cheers
Serg

I was going by a document from Maxi-drive (as I stated and gave a reference to in my post. Part of the document made into a jpeg is attached below. According to this the 40% reduction has 24T x 71T, so what are the tooth counts for the 49% reduction?

BTW I doubt 40% was a typo, as the maths check out. For 49% reduction the overall ratio would need to be approximately 1.49 x 3.3 = 4.92

Thanks John,

I missed the part where you said you got the info from a MD document. In all my MD literature I can only find 1 reference to the 40% low, that, on the bottom of a 30% low info page. All it says is "40% improvement is also available on request but does require machining of the transfer case."

I also have a hand written doc from Mal showing tooth count.

Original: 19/40 = 2.10
30%: 20/55 = 2.75
49% 23/72 = 3.13

primary reduction 26/41 = 1.58

Total T/Case
Original 3.32
30% 4.34
49% 4.94

some other info: 30% gear is 181mm dia, the 49% gear is 184mm dia. And again I think you are correct in your statement re a smaller tooth for the larger reduction.