tagnut69 4 Posted May 21, 2015 Hi I have an old Boomerang, not the re release and wish to fit cvd's to it, I believe I need the cvd's for the df03. Would this be a direct replacement for the dog bone and drive shaft or does the gear box drive need to be replaced? if so what with Cheers Chris Share this post Link to post Share on other sites
WillyChang 1812 Posted May 21, 2015 Old dogbones have bigger ballend than the new cars & re-re I thought. Share this post Link to post Share on other sites
kontemax 1723 Posted May 22, 2015 The CVD or the UJs are direct fit to the hubs. Modern diff cups are direct fit to the modern CVD. So you need the DT02/DF03 CVD and standard long splindle diff cups from Tamiya. They are common from Thunder Shot series until today. Max PS: little tip. Buy four 850 ball bearings and press them from outside into the bearboxes (not with Boomerang re release diff cups). Hi I have an old Boomerang, not the re release and wish to fit cvd's to it, I believe I need the cvd's for the df03. Would this be a direct replacement for the dog bone and drive shaft or does the gear box drive need to be replaced? if so what with Cheers Chris 1 Share this post Link to post Share on other sites
MadInventor 3884 Posted May 22, 2015 If you want to use thundershot joint cups on the rear, thundershot / top force UJs will also fit in the rear, not sure about the front though Share this post Link to post Share on other sites
kontemax 1723 Posted May 22, 2015 Thunder Shot/ Top Force UJs perfectly work on the Boomerang. DF/03, DT02 CVD perfectly work on the Boomerang. Thunder Shot/Manta Ray/TA01/DF01 diff cups perfectly works on Boomerang with modern CVDs or Thunder Shot/Manta Ray UJs. With these diff cups you can add the four 850 ball bearings. ReRe Boomerang/Hot Shot/Super Hot Shot diff cups perfectly work on the Boomerang but without the 850 bearings added. Max 1 Share this post Link to post Share on other sites
Plopes 138 Posted May 23, 2015 Does the Boomerang come with hardened diff cups? Share this post Link to post Share on other sites
kontemax 1723 Posted May 23, 2015 They seem hardened because they are blackish but in my experience they went away like butter. The 7 mm dogbone head was not so efficient, noisy and rattling. Far away better the more modern 6 mm head from Thunder Shot series that is still the standard. Max Share this post Link to post Share on other sites
Plopes 138 Posted May 23, 2015 Thanks for the reply Max, I have the rere Boomerang and the diff outdrive cups are a darker colour. Would you replace them with the 53218 hard cup set? Share this post Link to post Share on other sites
kontemax 1723 Posted May 23, 2015 Yes, I would it. Max Share this post Link to post Share on other sites
B.M.T. 127 Posted May 24, 2015 I used Hot Racing CVD's intended for the Wild Dagger in mine! Worked a treat, as I found the bones for the rere were too long and caused all kinds of issues. Share this post Link to post Share on other sites