(T) Lost 1st and 2nd Gear Any help Big thanks

Hi can anyone please give me some advice on gear selector & driveshaft issues? I have just spent a jolly weekend replacing the clutch in my cinq sporting after a rear engine mount failure combined with a some what catastrophic release bearing failure (man never seen a spring plate and clutch fork in such bad shape ( ). Anyway not being much of a haynes manual fan (maybe stupidly in this case but have always affectionately known them as the book of lies) popped the drive shafts off, disconnected selector arms, cables etc and dropped the box. All was fine and now have a lovely clutch but no 1st and 2nd. Also go above 60 and get a horrible vibration coming from off-side driveshaft. On closer inspection this shaft now travels in a slightly eccentric orbit rather than spinning on its axis and so I presume that on dropping the box I’ve inadvertently dislodged something (?) but by that time on Saturday my private parts weren't big enough to pop the diff apart!! Couple of things, popped the driveshaft apart at the inner cv joint (done this on plenty of other cars with no probs) and only dropped the box far enough to do the required work without disconnecting the rearmost gear selector.
That brings me on to the gear selector issues; I only disconnected the selector arm on the top of the box (the one that seems to control the fwd and bwd motion of the rearmost one) with the rectangular keyway. On undoing the retaining nut for this the shaft fell into the box slightly before I caught it and replaced the nut, with the arm removed. on replacing the box and reconnecting the arm I lost the said gears. After much head scratching I can see that the arm now fails to go to its RHD position when trying to engage 1st & 2nd and does not therefore through the rear selector backwards to engage these gears and thus engages 3rd & 4th instead. Are there any ways of adjusting these or do I have to pop the top of the selector area of to re-engage something or have I made a monumental B*LLS UP?
any help would be well appreciated at the mo or I’ll have to eat my words and get one of those lovely books
Many thanks Pete

BTW many thanks to those who gave Hand brake advise prior to my mot last month: Replaced absolutely all components in the end and it just met the limits (definately no locking wheels though) anyone ever fitted alternative fiat rear drums with maybe a shortened cable and more conventional handbrake operating arm?

lol i think sum1 sumwhere has modded their handbrake? i Canni remeber what car they robbed it off of..

This may be of use

http://www.fiatforum.com/showthread....dbrake+mystery

Liam

Hi,
Make sure you have re-adjusted your clutch cable after fitting a new clutch, it manual adjust on the cinq, all layed out in the haynes or porters manuals......

Thanks
Paul T

Hi Paul
clutch is fine many thanks, think its more of a selector issue, so be popping the lid off it at the weekend and having a nose about!!
cheers
Pete