hi, i want to change wat do people use.
also what diff has it got and what ratio.
also what would have shorter gear speeds, a diff with a final drive off 3.6 or 3.9.
my isnt locking up like before could it be rectified by oil change.
dreg mtec1 sport 325i diff advice
Moderator: martauto
assuming it has it's original diff it will be a 3.64:1 LSD. If you were to fit a 3.91 from a later 325i you would get quicker acceleration but lower maximiun possible speeds in each gear.
If it's not locking it's probably worn out, PM Gareth for rebuild info and prices.
If it's not locking it's probably worn out, PM Gareth for rebuild info and prices.
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gareth
- E30 Zone Team Member
- Posts: 11009
- Joined: Tue Jan 11, 2005 11:00 pm
- Location: hastings, east sussex
when you drop the oil, check for metallic particles. if it comes out all 'twinkly' then it's probably in a similar state to a lot of E30 diffs - fooked! not worth refilling and using as the damage will continue at a relentless pace. the particles come from the clutch plates and pressure plates as they wear through the hard friction coating and start to eat each other.
they can be saved and rebuilt though but don't leave it too long as the gears and bearings really dislike grinding paste in the oil
PM me if you want an idea on price.
regarding E30 diff locking, they aren't that 'tight' as standard and benefit from a 30° ramp angle modification to get them to 40% locking. some fresh clutch plates and 30° ramps transformed my diff
they can be saved and rebuilt though but don't leave it too long as the gears and bearings really dislike grinding paste in the oil
PM me if you want an idea on price.
regarding E30 diff locking, they aren't that 'tight' as standard and benefit from a 30° ramp angle modification to get them to 40% locking. some fresh clutch plates and 30° ramps transformed my diff
Sole founder of Fe2O3-12V it's a lifestyle
LSD rebuilding / modification services provided, PM for details
LSD rebuilding / modification services provided, PM for details