TVH 0 Posted September 2, 2007 Is it possible to fit BE1 gears and final drive into a BE3 box? What I'm planning to do is to fit 1.9 gti BE1 gears with 405 Mi16 final drive into a base model BE3 box, that would give me the best gear ratios for track use and also get rid of the reverse cable. Share this post Link to post Share on other sites
jim21070 2 Posted September 4, 2007 I don't see why not. The major difference is in the selector mechanism and as far as I know, the gearsets and final drive are substantially identical between the BE1 and BE3. Miles should be able to give the authorative answer Share this post Link to post Share on other sites
whizzer71 0 Posted September 4, 2007 I recently built a box up for a mate of mine for his turbo conversion and I used Be 4 casings,Be3/Be1 gears and a FD set from a Be1,The only and not immediate difference was the cut of the teeth on the Be4 reverse idler were different to that on the Input shaft that I used from the Be3 box. The selectors on the Be1 box are def different,but if you wanna mix and match just take your time and examine the bits as you go,make sure you have plenty space too as youll be suprised just how many bits you'll end up with. I think it pays to lay everything out in order of sequence as you take it apart ,Good luck the rewards can be good if you get it all spot on ! Tris Share this post Link to post Share on other sites
TVH 0 Posted September 4, 2007 I recently built a box up for a mate of mine for his turbo conversion and I used Be 4 casings,Be3/Be1 gears and a FD set from a Be1,The only and not immediate difference was the cut of the teeth on the Be4 reverse idler were different to that on the Input shaft that I used from the Be3 box.The selectors on the Be1 box are def different,but if you wanna mix and match just take your time and examine the bits as you go,make sure you have plenty space too as youll be suprised just how many bits you'll end up with. I think it pays to lay everything out in order of sequence as you take it apart ,Good luck the rewards can be good if you get it all spot on ! Tris Thanks, both of you! I'm convinced now! Share this post Link to post Share on other sites
Miles 331 1 Cars Posted September 4, 2007 Basically what Wiz' has said, the basic gears are all fine to swap, Share this post Link to post Share on other sites
petert 555 Posted September 5, 2007 I thought there was difference on one of the journal sizes on the input shaft. I'll take a pic. later which will explain it better. Share this post Link to post Share on other sites
Miles 331 1 Cars Posted September 5, 2007 The 16v input shaft and some other odd one's use a slightly smaller dia shaft, but you can get a plain bush to overcome this, from what I have no idea as I;ve got a box of bushes, Strange why they did this as it's never been a problem, The main thing is 5th gear slipping on the splines Share this post Link to post Share on other sites
