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  1. Installed a Tremec Magnum XL in my S550

    Did UPS find it?
  2. Installed a Tremec Magnum XL in my S550

    An aluminum driveshaft isn't necessarily going to cause vibration, but it may be worth your while to try and find a local driveshaft shop that can build it and balance it to a gnats ass, instead of just buying one off the shelf and hoping for the best. Getting the right yoke for the rear might...
  3. Another NA car breaks diff bolts...

    What would be better, carbon fiber or titanium? I found 16mm OD x 1mm wall round tube in both, similar price. Probably too many variables to carbon fiber composite to know the exact compressive strength, but having trouble even finding a ballpark for comparison. I also found copper for even...
  4. Another NA car breaks diff bolts...

    Are you planning to counterbore the ears on the diff cover for these?
  5. Manual Trans. Thud when shifting

    I did a Magnum XL, Tilton clutch, MGW shifter, and QA1 driveshaft. There’s a whole bigass thread here with several of us that have done it. Not too bad, but not 100% plug and play either. https://www.mustang6g.com/forums/threads/installed-a-tremec-magnum-xl-in-my-s550.115797/ Best bet is to...
  6. Manual Trans. Thud when shifting

    I my experience the thud is just a Getrag thing, my S4 does it too, and a full rebuild doesn’t even solve it. They’re just set up with more lash I I guess. BG fluid helped some, but ultimately I cured mine with a Tremec and a 1 piece driveshaft. There’s a reason they don’t put the MT82 in the...
  7. Steeda S550 Mustang Front Roll Center & Bumpsteer Correction Kit (15-19 All)

    I don’t know how you’ve managed this, I’m at -2 degrees front with RCC arms and Steeda plates, and the strut nut is very close to touching the hole in the tower on one side, got about 1/16” on the other side. This more closely resembles my experience. To get more camber my options are open up...
  8. Installed a Tremec Magnum XL in my S550

    Would probably be best if the box didn't say TREMEC in huge letters on all sides, kinda draws attention and anybody with a smartphone can quickly figure out it's worth thousands. Sorry about your luck, hopefully UPS "finds" it, but that might take some serious pressure from the sender.
  9. Installed a Tremec Magnum XL in my S550

    The only reliable way to run the Bowler harness is to provide it a dedicated power and ground. Using power off the PCM is very hit and miss, and that's straight from Bowler. Their instructions really should require a separate power and ground from the get go.
  10. Another NA car breaks diff bolts...

    For a threaded connection, ideally you would want a counterbored hole in the ear which would allow the grip of the bolt to extend fully through the joint and into the ear before the threads engage. That would require some sort of custom shoulder bolt or a sleeve sized to the counterbore, which...
  11. Another NA car breaks diff bolts...

    If you used the existing threads in the diff ear, how is that different than the OE design other than using a stronger bolt? A through-bolt design would require a nut, period.
  12. Another NA car breaks diff bolts...

    This is the only option that ultimately makes any sense to me. I've decided to drop the diff when I replace the axles, install a GT350 diff cover for oil cooling, and drill and through-bolt everything. Probably also going to bolt a pinion snubber to the cross member, because I'm keeping the...
  13. Another NA car breaks diff bolts...

    I’ve see one for the front diff mounts where you drill out the threads in the bushing, but so far haven’t seen anybody drill out the ears on the diff cover and through bolt the rear. Would make sense if it had been done though. I might yank the cover off mine next time it’s in the air and have...
  14. Another NA car breaks diff bolts...

    Maybe this has been discussed, but why not through-bolt the rear with a larger diameter (16mm) bolt? All you have to do is drill out the threads in the ears on the diff.
  15. Another NA car breaks diff bolts...

    Something still needs to be done at the rear mounts, obviously. Edit: So, typically a bolt is most likely to shear at a stress concentrations like where the threads end and the grip begins, so it might be a better idea to just use a piece of high strength allthread through the bushing and into...
  16. Another NA car breaks diff bolts...

    This would probably work if it fits, could be shimmed down or cut down to suit. Should be able to mount it without dropping the diff, if you're handy.
  17. Another NA car breaks diff bolts...

    Think, when the wheel is hopping, it's slipping and gripping rapidly. When it loses traction the pinion will drop, but when it grips gain it's going to slam the pinion upward. The only thing stopping that movement are the mounts and the single shear bolts. The upward force would be many times...
  18. Another NA car breaks diff bolts...

    The primary force being applied is up, which is what snubbers are for. The only force pushing the pinion down is from decel which engine braking can only apply a small amount of force. Braking forces are translated from the hub into the chassis directly.
  19. Another NA car breaks diff bolts...

    https://teamenergysuspension.com/?s=snubber Plenty to choose from
  20. Another NA car breaks diff bolts...

    Going back through this, I'm wondering if anyone has tried an old-school solution, why not just use a pinion snubber? I'm betting that would take most of the shock load off those diff bolts and still allow for low NVH. There's a good spot on the subframe to mount one up and you can even buy...
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