Oddball braking/gearbox problem

[Drax]

since fixing the recent ignition switch problem, i took the lude for a drive and half way down the road i had a horrible grinding noise
couldnt really see any issues (didnt help that it was dark) so turned around to drive it home but each time i hit the braking i had a horrible shuddering/locking feedback from the brakes which was so bad i tried every effort to engine brake on the way home and not brake at all.

after consulting with a few LG'ers Wurly, Phil & Njord ive take off both rear wheels and checked then rotated ok with the handbrake off which they did

I then took off both front wheels and they did not rotate feely at all, they were pretty stiff. so the next eve i removed a brake caliper and tried again but the wheel was still stiff to rotate. i then started the car, reversed and the brakes worked perfect. put it in first gear (clutch is oddly high, has been since day 1 even with a brand new clutch) and moved forward then gently hit the brakes and got the same shuddering/locking feedback from the brakes

i then repeated this and it was exactly the same again - fine braking in reverse but not rolling forward...in or out of gear.
most likely suggestion so far is the LSD (a new helical M-Factory one) has something caught in it causing the shuddering/locking feedback from the brakes.

apparently @Ted had a diff issue a few years back? not sure if he is still active on here, plus if anyone else has a suggestion i'd be grateful. really REALLY hoping its not a gearbox problem but i fear it is

[Scott560]

does sound like gearbox to me based on what you've said.

You can get pad transfer to the disc that causes sticky spots on the disc (if youve done a track day recently), but since the wheels are still stiff to rotate when the pad/caliper is removed, and it doesn't happen in reverse, then i think you are starting in the right area worrying about the gbox or driveline.

I doubt it would be a wheel bearing or binding CV joint , little bit tricky to test as soon as you pull the CV out of the gbox you'll loose half your oil - but that would rule out everything from the wheel/hub/bearing/cv inner/outer.

[louckie]

Who built the gearbox dude?

Do you have any friends in the automotive industry with a set of phono’s “ ears “ you can hook up to diff housing suspension leg and gearbox body

No shuddering under acceleration ?

Pull shafts out of the hubs and again turn, difficult I know but that eliminates hubs keep us posted @Drax

[Drax]

Ok, d*ckhead alert here. After Wurlys advice to still remove both front calipers, I found the side I didn't remove the other day somehow had a bolt missing... Doesn't seem to be sheared so I can only guess I've forgotten to put it back in...

Please commence appropriate fail/idiot etc memes....

[4thgenphil]

Actual prick, i was stressing out that the had gone tits out here!

[vanzep]

happens all the time to me Drax
i wouldnt stress about it - at least its fixed

[JEBB4]

Holy moly I was gunna suggest an ABS issue but looks like it was just good old fashioned forgetfulness happens to us all bud..