Mo Murphy Posted August 14, 2018 Share Posted August 14, 2018 I think Neil (V8Freak) may have a surplus GKN now that he's auto, might be worth a pm Ralph. Mo 1 Quote Link to comment Share on other sites More sharing options...
Giles Posted August 15, 2018 Share Posted August 15, 2018 Western Ralph, There's a s/h roverdrive for sale on a french (non-specialist) site for 850€... I've pm'd you a link and can liaise if needed.... 1 Quote Link to comment Share on other sites More sharing options...
Snagger Posted August 15, 2018 Share Posted August 15, 2018 The Roamerdrive is good, but it's no silver bullet. I don't know about later units, but early ones had cheap bearings that were not quite true in mine. They're very susceptible to low transfer box oil levels and hard to rebuild if that does happen (guess how I know). On the plus side, all I had to do was replace the failed bearings (no loss, since they were already horrible) and have the sun shaft bearing surface turned and sleeved. To withstand what it did and be so simply repaired (ignoring the physical difficulty of parts of the job) is testament to its overall ruggedness. Just watch the oil level! Quote Link to comment Share on other sites More sharing options...
western Posted August 15, 2018 Author Share Posted August 15, 2018 Already had a PM from Mr V8Freak ref his dormant GKN unit & a PM from Giles about the other OD on the french webpage, Thanks both, PM's have been replied to. Quote Link to comment Share on other sites More sharing options...
western Posted August 17, 2018 Author Share Posted August 17, 2018 Quote Link to comment Share on other sites More sharing options...
western Posted December 15, 2018 Author Share Posted December 15, 2018 just to update this, I bought V8Freaks unit from him & managed to get one of these bigger sumps [waiting on delivery] http://maximum--overdrive.com/products.html Deep Sump, Larger than any other on the market. It will work on J&P type overdrives. Will increase oil capacity and cooling. Recommended for heavy duty applications. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted December 16, 2018 Share Posted December 16, 2018 Hey! That's mine, it's even got my name on it ! 😂 Mo 2 Quote Link to comment Share on other sites More sharing options...
western Posted December 16, 2018 Author Share Posted December 16, 2018 48 minutes ago, Mo Murphy said: Hey! That's mine, it's even got my name on it ! 😂 Mo No it's mine, or at least the one I bought is. 1 Quote Link to comment Share on other sites More sharing options...
Snagger Posted December 17, 2018 Share Posted December 17, 2018 15 hours ago, Mo Murphy said: Hey! That's mine, it's even got my name on it ! 😂 Mo Turn it the other way around and it has Nige's middle name -"ow"! 1 3 Quote Link to comment Share on other sites More sharing options...
reb78 Posted December 17, 2018 Share Posted December 17, 2018 On 12/15/2018 at 10:53 PM, western said: just to update this, I bought V8Freaks unit from him & managed to get one of these bigger sumps [waiting on delivery] http://maximum--overdrive.com/products.html Deep Sump, Larger than any other on the market. It will work on J&P type overdrives. Will increase oil capacity and cooling. Recommended for heavy duty applications. Be curious to know if it retains the small gauze filter and whether the oil pickup is extended into the sump or not when you get it Ralph. Also whether it still has a magnet glued in there as I find mine does catch some fine particles. The fella selling these wasnt that helpful when I contacted him previously - didnt seem to know when he might even expect stock! Quote Link to comment Share on other sites More sharing options...
western Posted December 17, 2018 Author Share Posted December 17, 2018 He had this in stock, but it's taken me nearly 3 months to get hold of this item, he doesn't work at these as a fulltime job, my first email was on 19 Oct, my last reply from him was 15 Dec, had to extract the parcel tracking number from him as well, customs charges were paid this morning & I'm expecting delivery tomorrow, if it comes after 11.30am, [ I'll be at work after] then I'll have to collect from post office on Weds morning. I'll add some photo's of the inside when I get my grubby mitts on it. Quote Link to comment Share on other sites More sharing options...
soutie Posted December 19, 2018 Share Posted December 19, 2018 Here are some real life fitting instructions for your deep sump. Please take photo's and let us know how you get on. https://www.ford-trucks.com/forums/1259386-gearvender-deep-sump-installation-tutorial-maximum-overdrive.html 1 Quote Link to comment Share on other sites More sharing options...
western Posted December 19, 2018 Author Share Posted December 19, 2018 Well it's here. photo's because you all want to see the item, the bigger sump has a drain plug which has a inbuilt magnet, also comes with new longer bolts/spring washers & gasket, just found out what the short tube is for [to extend the gauze filter into the deeper sump, Thanks to soutie for the link above, a few posts on that link are corrupted, but it gives a good idea of how it fits. Quote Link to comment Share on other sites More sharing options...
reb78 Posted December 19, 2018 Share Posted December 19, 2018 I think this will be a very worthy addition to the GKN. I have no doubt this will help reduce wear and also make maintenance easier with the drain plug!! I plan to fit something similar very soon hopefully. Even so, I would still recommend changing the ATF at every engine service. 1 Quote Link to comment Share on other sites More sharing options...
western Posted December 19, 2018 Author Share Posted December 19, 2018 Fitting of the 'new to me' GKN & this sump will be a 2019 job now, when we get a good dry weekend. Quote Link to comment Share on other sites More sharing options...
Ducko Posted April 18, 2019 Share Posted April 18, 2019 My gkn overdrive was playing up badly with slipping gears mostly. I changed the atf oil and cleaned the filter and it worked like new for A few thousand miles. Its now leaking oil between the transfer box and the gkn, anyone got advice? Is it a big job to remove it and can i return the defender to being used without an overdrive. ? Quote Link to comment Share on other sites More sharing options...
western Posted April 18, 2019 Author Share Posted April 18, 2019 Fairly easy to remove, you need the original transfer gear, cover plate, gasket, bolts to put transfer box back to standard form. Quote Link to comment Share on other sites More sharing options...
western Posted May 5, 2019 Author Share Posted May 5, 2019 Well in process of fitting the new to me overdrive, also found that the big sump I bought doesn't fit with the transfer box big sump fitted, they both need to occupy part of the same space, so will have to make do with OD existing oil capacity. 2 photos below show the problem, may see about having the overdrive sump modified so the corner that clashes is removed & plated or welded up. Also the 6 bolts supplied are Not the same thread as the GKN bolts. Quote Link to comment Share on other sites More sharing options...
reb78 Posted May 5, 2019 Share Posted May 5, 2019 Thats bad luck Ralph. If I had the choice though i would run the overdrive sump instead of the transfer box one. Quote Link to comment Share on other sites More sharing options...
reb78 Posted May 5, 2019 Share Posted May 5, 2019 Oh, also, the thread in the OD base for the sump is 1/4-28 UNF if you need to source different bolts. Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted May 5, 2019 Share Posted May 5, 2019 That is an interesting development Ralph. And something I had not thought of. I've spent some of this weekend doing some design work on the sump i plan to make. Looks like I'm heading back to the drawing board. Quote Link to comment Share on other sites More sharing options...
Snagger Posted May 5, 2019 Share Posted May 5, 2019 On 4/18/2019 at 4:21 PM, Ducko said: My gkn overdrive was playing up badly with slipping gears mostly. I changed the atf oil and cleaned the filter and it worked like new for A few thousand miles. Its now leaking oil between the transfer box and the gkn, anyone got advice? Is it a big job to remove it and can i return the defender to being used without an overdrive. ? The gasket may just have become too compressed and the unit just needs nipping up on the bolts. Failing that, removing it to replace the gasket, either with a new gasket or RTV sealant, should sort it out. A small, rectifiable oil leak is no reason to revert to standard gears, but it does need attention before your oil levels can drop enough to harm anything. Quote Link to comment Share on other sites More sharing options...
Snagger Posted May 5, 2019 Share Posted May 5, 2019 How much overlap is there on the two sumps, Ralph? Would it be possible to shave both of them a little on the outside without breaching the inner faces, or does a more substantial lump need removing? If it's only small, you might be able to use those special alloy brazing rods like George used on his RR floor to use with small ali patches or even to internally reinforce shaved corners. In the mean time, if you run only one of the big sumps, I echo Reb's view that the overdrive sump is more important than the 230's. If you did fit the Roamerdrive, then the 230 sump would be of great benefit, but with the GKN, it's not going to make a world of difference. Quote Link to comment Share on other sites More sharing options...
western Posted May 5, 2019 Author Share Posted May 5, 2019 Needs a good lump removing from the overdrive sump, just got to pack tools up & clean my grubby hands. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted May 5, 2019 Share Posted May 5, 2019 I'd leave the standard transfer box sump on. LT230 transfer boxes are stronger than overdrives. Quote Link to comment Share on other sites More sharing options...
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