[ex670c]

Originally Posted by ex670c

For the Maxx Series
Front Solid Axle - 57" Track
Rear Solid Axle (FFRA) - 59"Track

Bolero
Front Solid Axle - 57"Track
Rear Solid Axle - 54"Track (FFRA & Semi-Floating)

CORRECTION

Maxx Series LX Festiva/Festara/Maxxi Truck/Underslung/Overslung

Front - 57"
Rear - 59" FFRA

Bolero
Front - 57"
Rear - 53" FFRA

Savari/Utility/Pikup
Front - 57"
Rear - 53"

Marshal 2000/2000 DLX/Royale
Front - 57"
Rear - 53"

MM ISUZU (I suspect the same for the post 2004 NGCS MM550XD)
Front - 57"
Rear - 53"

Some of the MM550XD(pre 2004)/Pikup/Utility/Bolero Invader comes with a Dana 44 3/4 Floating (Semi-Floating) Axle with 30 Splines.

Rest of them are Dana 44 19 Spline FFRA.

[vinod_nookala]

Originally Posted by ex670c

CORRECTION

Maxx Series LX Festiva/Festara/Maxxi Truck/Underslung/Overslung

Front - 57"
Rear - 59" FFRA

Bolero
Front - 57"
Rear - 53" FFRA

Savari/Utility/Pikup
Front - 57"
Rear - 53"

Marshal 2000/2000 DLX/Royale
Front - 57"
Rear - 53"

MM ISUZU (I suspect the same for the post 2004 NGCS MM550XD)
Front - 57"
Rear - 53"

Some of the MM550XD(pre 2004)/Pikup/Utility/Bolero Invader comes with a Dana 44 3/4 Floating (Semi-Floating) Axle with 30 Splines.

Rest of them are Dana 44 19 Spline FFRA.

Bolero Invader rear axle is 59" i think or may be 57". The front and rear track match very closely unlike every other M&M vehicles. The rear of Invader is overslung inverted leaf. This is soft but has not so good articulation.

[Alfa_Kilo]

Originally Posted by ex670c

CORRECTION

Maxx Series LX Festiva/Festara/Maxxi Truck/Underslung/Overslung

Front - 57"
Rear - 59" FFRA

Bolero
Front - 57"
Rear - 53" FFRA

Savari/Utility/Pikup
Front - 57"
Rear - 53"

Marshal 2000/2000 DLX/Royale
Front - 57"
Rear - 53"

MM ISUZU (I suspect the same for the post 2004 NGCS MM550XD)
Front - 57"
Rear - 53"

Some of the MM550XD(pre 2004)/Pikup/Utility/Bolero Invader comes with a Dana 44 3/4 Floating (Semi-Floating) Axle with 30 Splines.

Rest of them are Dana 44 19 Spline FFRA.

The only 30 spline are the army MM550XD with rear TRAK-LOK LSD. Rest are all 19 spline. The only other 30 spline 44 in India is the LSD version of the Safari rear axle.
Semi floating is different from 3/4 floating. All D44 are either semi or fully floating. 3/4 floating is rare these days, but used to be common on old car rear axles.
There is a workshop in Delhi (branded MAIN) which makes jugad 30 spl axles for jeeps, but their stuff is expensive scrap metal. They measure their tolerences in inches instead of microns.

Was the MM ISZ 1.8 NGCS?

[ex670c]

Originally Posted by Alfa_Kilo

The only 30 spline are the army MM550XD with rear TRAK-LOK LSD. Rest are all 19 spline. The only other 30 spline 44 in India is the LSD version of the Safari rear axle.
Semi floating is different from 3/4 floating. All D44 are either semi or fully floating. 3/4 floating is rare these days, but used to be common on old car rear axles.

Look around some more M&M Vehicles and Tata vehicles.
M&M Bolero Invader, Bolero Camper - They are all Dana 44 -30Spline.
TATA - 207

3/4 Floating is a term applied to the 1 piece Semi-Floating Axles which was introduced in INDIA with the Dana 44 -30 Spline.

In a 3/4 Floating 1 piece axle the Wheel Bearing is held by a Backing plate & 5 HT Bolts, unlike the regular Castle Nut and cotter pin.

Regards,

Arka

[Alfa_Kilo]

Originally Posted by ex670c

Look around some more M&M Vehicles and Tata vehicles.
M&M Bolero Invader, Bolero Camper - They are all Dana 44 -30Spline.
TATA - 207

3/4 Floating is a term applied to the 1 piece Semi-Floating Axles which was introduced in INDIA with the Dana 44 -30 Spline.

In a 3/4 Floating 1 piece axle the Wheel Bearing is held by a Backing plate & 5 HT Bolts, unlike the regular Castle Nut and cotter pin.

Regards,

Arka

3/4 floating has two bearings at the wheel end, one supporting the hub and the other supporting the axle/halfshaft. All semifloaters have only one bearing at the wheel end, flanged or tapered axles.

[ex670c]

Originally Posted by Alfa_Kilo

3/4 floating has two bearings at the wheel end, one supporting the hub and the other supporting the axle/halfshaft. All semifloaters have only one bearing at the wheel end, flanged or tapered axles.

Thanks for the Information, any pictures or Diagrams of this setup will greatly help in understanding this design.

[Alfa_Kilo]

Originally Posted by ex670c

Thanks for the Information, any pictures or Diagrams of this setup will greatly help in understanding this design.

Correction. Threequater floating need not always have two bearing at the wheel end. If there is only one bearing, it supports the hub rather than the axle. The axle takes up the torsion load along longtudenal and vetical axes.

FF - Pair of bearing betwwen the hub and axle tube take all loads except torsion along the axle axis.

SF - The one bearing between the axle tube and axle/halfshaft takes up all linear forces, while the shaft takes care of all bending forces. (In many SF types, the transverse linear forces are transmitted between taper roller bearings throught the axle shafts via a floating thrust block in the diff.)

3/4F - The bearing/s (between hub and axle tube) take up all linear forces and the axle shaft absorbs torsion along all axes.

You will have to google for pics.

[4x4addict]

Originally Posted by ex670c

No Difference.

The Rear Differential is off-set Left in the Bolero Series and Centered in the MAXX series.

To replace the rear diff for my 540 with a wider track. Is it better to use one from Bolero 4WD or the Pik up?

[ex670c]

Originally Posted by 4x4addict

To replace the rear diff for my 540 with a wider track. Is it better to use one from Bolero 4WD or the Pik up?

Semi floating vs Full-Floating

30 spline vs 19 spline

Either ways you will have to switch the arms, for MM540 you need a right off-set differential.

[jyobeb]

If I remember correctly, Tini has a NGT gearbox with a borg Warner transfer case. He will then need a left offset rear differential.

[4x4addict]

Originally Posted by jyobeb

If I remember correctly, Tini has a NGT gearbox with a borg Warner transfer case. He will then need a left offset rear differential.

Actually Arka had clarified a point earlier that mine is not the Borg Warner Tcase but the Splicer with the shift patter changed to shift in a single line similar to the Borg Warner unit.

I also confirmed with my mechanic that the off set remains the same as for the standard 4WD 540, so I guess I will have to do pretty much the same thing Arka has done by swapping the tubes around. My only concern is that I currently have the 4.27 crown/pinion and the Bolero 4WD with the XD3P probably comes with the 4.88 (i.e) same as the MM550 and if the Bolero has 30 splines, I will not be able to use the axles as I don't know if I can get the 4.27 ratio with the 30 spline axles. I guess I will have to buy the 4.27 ration crown/pinion with 30 spline. I am hoping this ratio maybe available from the Mahindra Bolero 4WD with the DI engine.

[Brutus]

Yuo got the semi floating 30spline axle right? my Bolero is full-floating and it has 19 spline axles. A Dana44 is called so becasue of the differential pumkin housing. Only the carrier housing is different between the 2 ratios because of the carrier breaks( one carrier housing can manage ratios below a certain ratio and the other above it, and this is called carrier break. If there are lots of ratios, then there will be lots of carrier housings too. One carrier, usually manages about 2-5 ratios, depending upon the model of the differential)though even the side gears too are designed for 30 splines and 19 splines respectively, but they have the same external measurements. Keep the stock carrier inside your original differential, enabling you to keep the same crown/pinion, but change the spider/side gears to the other axle type, simple. Only the LSD carrier would be different. If i'am wrong, someone please correct me.

[ex670c]

Hi Guys,

Its customary for me to Upgrade the MM540XD before TPC, every year.

I feel, that the MM540XD, has been upgraded enough, barring a few bolt on kits, then I want to rebuild another JEEP.

The Upgrades.

1) Rear Dog-Clutch LSD. aka Auto-Locker (Lock-Right 2413)

2) Snorkel - Britpart NRC6920 Dome

3) un-restricted exhaust - like the NGCS MM550XD, a little bit more flushed in.

4) Extended Body Beds. - Like the Armada Grand/Bolero NGCS Series

Regards,

Arka

[vinod_nookala]

Originally Posted by ex670c

Hi Guys,

Its customary for me to Upgrade the MM540XD before TPC, every year.

I feel, that the MM540XD, has been upgraded enough, barring a few bolt on kits, then I want to rebuild another JEEP.

The Upgrades.

1) Rear Dog-Clutch LSD. aka Auto-Locker (Lock-Right 2413)

2) Snorkel - Britpart NRC6920 Dome

3) un-restricted exhaust - like the NGCS MM550XD, a little bit more flushed in.

4) Extended Body Beds. - Like the Armada Grand/Bolero NGCS Series

Regards,

Arka

Wonderful arka!! Now please post some pics of installation etc etc...

[joshguy]

Hi All,

I didnt understand a bit of information in this thread But hope to know all these soon.

By the way arka i ve been seeing both your jeeps almost every day at your home (i suppose thats your house,near icici mahalingapuram) and hope to meet you some day

OFF TOPIC: I am a gypsy lover and i want to know if it is possible to make the gypsy's suspension softer by any means?