405 back axle swaps

JohnBoy · Unread post by **JohnBoy** » 25 Jan 2005, 14:59

Hi,
The car in question is a 94 405 GRDT estate
My back axle is fubar. the passenger side torsion bar bearings are completely shot, so I'm gonna swap in another one if I can find a half decent one.
I've been told that the berlingo/partner back axle is a bolt in job.
What about a saloon axle, would one of these fit?
anyone have any info on spring rates and the like, I'd like to keep my ride pretty much the way it is, but don't fancy spending all that money on a recon back axle for a car with 160K miles on the clock.
any thoughts/suggestions would be much appreciated.
also the haynes manual refers to a special tool to remove the back axle, is it just a long stem torx or is it something special?

rossd · Unread post by **rossd** » 25 Jan 2005, 17:13

According to my Peugeot parts catalogue, your axle should have 18.9mm torsion bars and a 19mm anti roll bar, this seems to be the same for all the 405's except for the 1.4, MI16 and those with "Heavy Duty suspension" (Whatever that is!).
The partner van seems to have much much stiffer suspension, anything from 20mm torsion bars and upwards. It also looks different in the diagrams, so be sure it will fit 100% before you go and get one!

PowerLee · Unread post by **PowerLee** » 25 Jan 2005, 23:13

The saloon & estate axles are the same design & will swop ok.
BUT: The Pug parts cd has 3 different kinds of rear set up for the estate.
1: Normal rear end.
2: Firm rear end ( MI16 rear end )
3: Heavy duty rear end.
The choice is yours.

bikeboyz · Unread post by **bikeboyz** » 26 Jan 2005, 00:16

This ad always appears in my dad's local free rag...
PEUGEOT BACK AXLE problems? Need to scrap the car? Not anymore! All models sorted for a fraction of official replacement cost. Safedrive Ltd 01373 864205

JohnBoy · Unread post by **JohnBoy** » 26 Jan 2005, 19:21

Would the ride height be set the same between saloon and estate? or would the splines be located differently.
hmm, a diesel estate with Mi16 suspension

now that would make a cool project
Also I've been told that the design was changed for the run out cars, that 95 on cars don't have the same problems.
also been advised to tap the axle for a grease nipple between the two bearings and grease it at every service, supposedly makes a huge difference too.
am i talking out my arse?
thanks for the replies so far.

JohnBoy · Unread post by **JohnBoy** » 26 Jan 2005, 19:22

oh yeah, I'm in ireland too so the cost of a recon unit would get fairly spendy by the time it was shipped over here, hence my soon to begin quest for the breakers

JohnBoy · Unread post by **JohnBoy** » 26 Jan 2005, 19:36

What about the different years?
is an early axle the same as a late one? ie will a pre 92 axle fit?
Just rang the first breaker in the golden pages, fifty euro is all he wants for one. sweet

PowerLee · Unread post by **PowerLee** » 26 Jan 2005, 23:07

There where a few changes in june 1995 on the 405 & these are the best cars to have.
The sunroof assy was changed for the 306s better setup.
The ABS system was again changed for the 306s better setup.
The XU10J2 had a modification to the cylinder head, Less rattling, more BHP & different grade of spark plugs.
Ive not heard anything about a change to the last 405s rear axle, Ill ask someone who works for Peugeot & get back to you.
The ECU was upgraded.
The keypad was upgraded & gained Thatcham Cat 2 status.

JohnBoy · Unread post by **JohnBoy** » 02 Jul 2005, 19:10

Hi,
Actually doing this now.
What size torx bit are the rear mounting bolts?
I'm not sure If I've got the wrong size or if the bits I have are too short.
please if someone knows reply cos I'm well stuck here with two cars with arses up in the air

David Humphrey · Unread post by **David Humphrey** » 03 Jul 2005, 10:30

Could be 45 from memory.Check the ones under the seats first.I found i had to use an allen type torx to get the ones out which are accessible thro the chassis member.Make sure you use the correct one.Good luck!
David