5 replies to this topic

[simplyminis]

anyone ever fitted these by them selves?

 

are they are to fit?

 

any special tools?

 

any guides or step by step pointers 

 

thanks

[Cooperman]

You may need to have the transfer gear case precision machined for larger diameter transfer gear stub.
I'm going to remove my straight cuts transfer gears as I'm really sick of the horrible noise, so I'll have to get an adaptor sleeve machined.

[simplyminis]

any pics as this is the 1st time in going to do this and want as much info as possible thanks

[The Principal]

Depends on the type your thinking of buying, theres two basic designs the standard replacement set ( the gears in the vid are not SC but the same principle) covered in this vid which requires the end float shimming -

 

or there's the Roller type which can be a little tricky, the MED version costs about £350 http://www.med-engineering.co.uk/catalogue/gearbox-transmission/gear-kits/med-straight-cut-drop-gear-set-roller-type  - The MED set up comes with a top-hat and spigot for the rollers to rotate against, here's where it gets tricky, MED suggests heating the alloy tranny case to expand the Idler bearing seat, I had to use a local engineering company to open out the seat and press the Top-hat into place using loctite cost £20.

 

Points to consider -

 

Purchase the right set A series or A+

you can change the gear ratio 1:1 etc

Check what primary gear bushes are supplied

Edited by The Principal, 18 July 2013 - 05:29 AM.

[simplyminis]

The drop gears came with the car so not sure what make they are

[tiger99]

What I want to know is when this temporary expedient (straight cut idler gears) is going to be replaced by properly engineered herringbone gears, which will solve the end thrust problem, and run quietly. I don't think you can buy them, yet, but maybe one day....