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Old 2nd April 2018, 23:02   #106
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

Hello, can anyone identify this gearbox? Can i mate this gearbox with SIMPSONS S4 engine?
Thanks!
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Old 3rd April 2018, 10:07   #107
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

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Originally Posted by jojijacob View Post
Hello, can anyone identify this gearbox?
Thanks!
Looks like a KMT90 GB.
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Can i mate this gearbox with SIMPSONS S4 engine?
Yes you can. Just make sure you get the right bell housing or get an adapter plate done.
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Old 4th April 2018, 08:35   #108
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

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Originally Posted by dhanushs View Post
Looks like a KMT90 GB.

Yes you can. Just make sure you get the right bell housing or get an adapter plate done.
Thanks for the advice.

I'm planning to convert my 80' model MM 560D 2WD to 4WD. I'm also changing the engine to SIMPSONS S4 as the stock Cooper (P4)engine is very noisy and consumes a lot of engine oil. As you know, both axles have to be changed as part of 4x4 conversion. Can you please suggest me a perfect combination of front and rear axles and differential ratio? Does MM 550 axles (open knuckle and with disk brake setup) suite my jeep?

Regards,
Jacob.

Last edited by ampere : 4th April 2018 at 08:42. Reason: Formatted post
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Old 4th April 2018, 11:24   #109
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

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Originally Posted by jojijacob View Post
Thanks for the advice. I'm planning to convert my 80' model MM 560D 2WD to 4WD. I'm also changing the engine to SIMPSONS S4 as the stock Cooper (P4)engine is very noisy and consumes a lot of engine oil.
The Simpsons S4 engine is very heavy, has no rpm and is super boring to drive on roads. Even if you get the engine for free the installation cost is not worth it. Go for Di Turbo engine. No hassle, easy installation and maintenance. Will last you a lifetime.

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As you know, both axles have to be changed as part of 4x4 conversion. Can you please suggest me a perfect combination of front and rear axles and differential ratio? Does MM 550 axles (open knuckle and with disk brake setup) suite my jeep?
Yes, you can fit 57" OKBJ in the front and 53" FFRA in the rear. You will get these in military scrap yards.

If its simpsons you can put 4.27 or 3.73 for upto 31" tyres. If its Di Turbo put 4.27 (47/11) for up to 31" tyres.
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Old 4th April 2018, 19:41   #110
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

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Originally Posted by dhanushs View Post
The Simpsons S4 engine is very heavy, has no rpm and is super boring to drive on roads. Even if you get the engine for free the installation cost is not worth it. Go for Di Turbo engine. No hassle, easy installation and maintenance. Will last you a lifetime.
On road use will be minimal as this jeep is primarily intended to use in a cardamom plantation. The engine, gearbox and chassis should be capable of carrying heavy loads through very steep and tough plantation roads. There are a few long chassis jeeps here fitted with S4 engines. Installing a turbo engine in a 80 model jeep may lead to complications at the time of re- testing the fitness, I guess. Are you sure that installation coast will be high for S4? What is your opinion on installing XD3P instead of S4? One XD3P 2005 model is for sale for 28K.
Regards
jacob.
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Old 4th April 2018, 22:36   #111
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

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Originally Posted by jojijacob View Post
What is your opinion on installing XD3P instead of S4?
I think XD3 + 5.38 would be viable for your stated work.
See to it that it has a VDE rather than a CAV. An old CAV will give you a lot of grief.

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Sutripta
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Old 4th April 2018, 23:49   #112
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

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Originally Posted by Sutripta View Post
I think XD3 + 5.38 would be viable for your stated work.
See to it that it has a VDE rather than a CAV. An old CAV will give you a lot of grief.

Regards
Sutripta
Agree. “If” he gets a good condition XD3P. If not, will be riddled with heating issues. Smoke issues. Starting issues. And more. Only advantage is lesser NVH, which in a good engine is just superb.

A guaranteed good condition XD3P is rare.

S4 engine is fool proof. We run it in our generator with zero maintance. But, I just think it’s not suitable for a jeep in 2018. Di Turbo is much better considering swapping and maintance cost.

If you give the enthusiast some space, then I’d suggest the Scorpio SZ+ Chain Drive. But looking at the posts, I guess the use is purely donkey types (Industrial). And hence the suggestion of Di Turbo. Or even better MDI

Last edited by dhanushs : 4th April 2018 at 23:52.
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Old 7th June 2018, 23:17   #113
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

SOS Call
Can someone help me find a bell housing which could mate the hurricane F134 with kmt90 4 speed gearbox?
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Old 15th October 2018, 10:41   #114
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

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Originally Posted by P.SINGH View Post
Finally its just waiting for a transplant of engine n gearbox . Thank you for your tips but how about a Scorpio engine n g/box.
Sorry its been too long and i wanted to Thank all you Gurus for your advise
I have put in a DI engine with a Bolero grear box with a single stick shift to 4X4 .... sorry donít know the model number .... and its an absolute Pleasure to drive it . Pick up is Super but only one problem am having .... there is a big wabbeling on the front wheels n stearing wheel at 80km and above .... Please advise
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Engine, Gearbox, Diff ratios, axles options for the JEEP-cdb8c4654760493799ea1fc59e000d8b.jpeg  

Engine, Gearbox, Diff ratios, axles options for the JEEP-e53391f0ce194d8b9f177792ccc1687a.jpeg  

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Old 15th October 2018, 10:51   #115
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

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Originally Posted by Shubhendra View Post
Dear Mr. P. Singh,
If you want to retain current gearbox and transfer case then i would suggest you to go for Mahindra Di (without turbo) engine. it mates well with said gearbox and work beautifully. However, if your monthly running is less you can consider using petrol engine, now days there is hardly difference of 20 rs between petrol and diesel and cost/effort/time you incur for conversion would not offset until your running is high.

Shubhendra Singh
Quote:
Originally Posted by P.SINGH View Post
Sorry its been too long and i wanted to Thank all you Gurus for your advise
I have put in a DI engine with a Bolero grear box with a single stick shift to 4X4 .... sorry donít know the model number .... and its an absolute Pleasure to drive it . Pick up is Super but only one problem am having .... there is a big wabbeling on the front wheels n stearing wheel at 80km and above .... Please advise
Some more pictures of my collection of old buties
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Engine, Gearbox, Diff ratios, axles options for the JEEP-8b4d4e68e75d416f8499520cb6b5eebd.jpeg  

Engine, Gearbox, Diff ratios, axles options for the JEEP-5b77a28b8f7d459e8a9c031cb3c178ad.jpeg  

Engine, Gearbox, Diff ratios, axles options for the JEEP-a19959823eea4c28b22b6a49d540b1bf.jpeg  

Engine, Gearbox, Diff ratios, axles options for the JEEP-718a451721b1429fa9d46d5824a926c7.jpeg  

Engine, Gearbox, Diff ratios, axles options for the JEEP-d30e7492acec4ecc9fc5c7139c8c3028.jpeg  

Engine, Gearbox, Diff ratios, axles options for the JEEP-873f2d00d180495fa0a1ee71c71024ae.jpeg  

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Old 15th October 2018, 11:19   #116
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

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Originally Posted by P.SINGH View Post
there is a big wabbeling on the front wheels n stearing wheel at 80km and above .... Please advise
Remove the knuckle kit and set the clearance of kingpin bearings. AND, balance your wheels.
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