Posts: 57
Threads: 17
Joined: Jan 2013
Location: basildon, essex
Car Model/Spec: 306 hdi glx
has anyone tried to fit a 6 speed to a hdi 306, ive seen i few 406 hdi's as a 6 speed, just wondering if anyone has tried to fit one, the only issue's i can for-see is the engine mount and the n/s/f drive shaft possibly, i will need to change my clutch in about 12 months time and though about how much nicer it would drive...
Posts: 10,864
Threads: 117
Joined: Dec 2011
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Location: Southampton
Car Model/Spec: 306 HDi and friends
All the 6-speed hdi boxes are hydro clutch jobbies, would need to do a full conversion to hydraulic.
Posts: 57
Threads: 17
Joined: Jan 2013
Location: basildon, essex
Car Model/Spec: 306 hdi glx
damn do you recon you could take the mechanical bits and swap the over?......iam guessing i am not the first person to have this idea? lol
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Joined: Nov 2012
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Location: Cotswolds
Car Model/Spec: Stage 13 16v HDi
no, its not a traditional box converted to hrydo which can be switched back
Posts: 10,864
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Joined: Dec 2011
Reputation:
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Location: Southampton
Car Model/Spec: 306 HDi and friends
You could theoretically, but itd be a crazy amount of work and involve some custom fabrication, be miles easier just to do the clutch coversion.
Posts: 5,205
Threads: 91
Joined: Dec 2011
Reputation:
83
Location: Oxfordshire/Cornwall
Car Model/Spec: Moonstone DT/Volvo V50
The ML series box doesn't fit in a 306 without modification, requires bits cutting, its not a standard fit by any means!!
(16-05-2016, 10:45 AM)Toms306 Wrote: Oh I don't care about the stripped threads lol, that's easily solved by hammering the bolt in. 
Nanstone GTD5 GT17S - XUD9TE
Volvo V50 D5 R-Design SE Sport - Daily cruise wagon.
Posts: 4,608
Threads: 90
Joined: Dec 2011
Reputation:
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Location: Cornwall
Car Model/Spec: 1996 306 DT M-TDI/16
There not to bad, need to move the engine fowards on top mount to allow diff to clear the bulkhead and address the clutch problem, shafts fit fine though.
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Posts: 5,024
Threads: 82
Joined: Dec 2011
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Location: North Somerset
Car Model/Spec: E92 335i, GTi6, HDi S2
Does a HDi FD fit into a '6 box?
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Threads: 19
Joined: Dec 2011
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Location: Cavan, Ireland
Car Model/Spec: Ph1 D-turbo(on going project)
surely a standard 6 box could be modified for longer gearing?
whether or not it could handle the torque is another question
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Location: North Somerset
Car Model/Spec: E92 335i, GTi6, HDi S2
Anything can be done, with the right level of ££££
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Location: Cavan, Ireland
Car Model/Spec: Ph1 D-turbo(on going project)
hmmm, dont wanna spend money though.
if i could get my hands on a 6 box over here id be ripping it apart for a look at least!
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Location: Salisbury/Andover
Car Model/Spec: E39 ACS 535i
Iirc the 6 box has a longer FD than the hdi one, if not its only marginally shorter.
1st on the 6 box is so long anyway it would probably be undriveable if it was much longer, even on a diesel.
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Location: North Somerset
Car Model/Spec: E92 335i, GTi6, HDi S2
HDi FD is 3.6 where as the 6's FD is 3.95/4.05 depending on the year