Low Range Gears - FZJ-80

[LandCruiserPhil]

After 40 miles of low range and 100 high range I drained the oil. With clearance being very tight by the looks of the oil the fit is perfect. I expected a top notch product form Marlin Crawlers and they lived up to there solid reputation of building great stuff.

No funny or strange noises from transfercase. Shifting into low range feels the same as before the install. The only differance from stock is the feel of lower gears. Without question there is a noticable differance from just putting the LC in gear after the install.

The installation guide could be better IMO. I'm guessing a MUD guy will do install with better documentation.

Total install time for me was ~10-11 hour that includes ~3-31/2 hours of 2 man press work. There are a few challenges with the install and press work so be prepared accordingly.

Picture is the used breakin oil through a filter.

 

[LandCruiserPhil]

Update - I have been out several times with the new setup and if you are on the fence get off you will not be disappointed.

Your 80 moves much easier with more control.
No more gear whine when in low range. Now sometime I forget Im in low range due to no more whine until I look down and see 3500+rpm

2nd gear starts is now the norm, 1-2 shifts torques the whole body.

 

[NLXTACY]

One tight fit

I'm new on this thread. But this photo made my shorts particularly tight.

 

[LandCruiserPhil]

I'm new on this thread. But this photo made my shorts particularly tight.

Some like it tight and others....

 

[alia176]

Some like it tight and others....

LMAO

I agree with Phil, this is a very nice mod and 1st gear starts are a thing of the past.

 

[LandCruiserPhil]

Anyone else breaking motor mounts after this mod?

 

[Tools R Us]

Have replaced a couple of motor mounts, they are getting some age on them. Haven't done one on a rig with the gears,, yet.

 

[Delancy]

Anyone else breaking motor mounts after this mod?

Not yet.

Can you attribute to the gears specifically?

 

[LandCruiserPhil]

Not yet.

Can you attribute to the gears specifically?

Not 100% but they do add a very noticeable torque load to the drive train

 

[Delancy]

Not 100% but they do add a very noticeable torque load to the drive train

Hmmm. I'm not one to wait until the damage is done, if it's a known issue and avoidable.

Any pics of fracture?

 

[OGBeno]

Never heard of this but I wouldn't be surprised.

 

[Delancy]

Never heard of this but I wouldn't be surprised.

Then you know what to do, sir.

 

[OGBeno]

I do sir.

12361-17011 x2

Just got home from OKC....man that was a long ride. Sorry about the timing Chris.

 

[Delancy]

Sorry about the timing Chris.

Business is business. No apology necessary.

You won't catch me in OKC at midnight for love nor money.

I'll make sure to push the wife to acquire some hot friends, to sweeten the pot for the next journey to the area. See if maybe a teacher with a fetish for high school boys is available.

Is there any known reinforcements to torque induced fatigue? (An odd question, considering the platform, but I'm also experiencing torque induced body roll with the 5.29s that I hope to correct with Radflo's).

I know several have had issues with on the FJC (SCs and Atlas') but most have relied upon local fabricators to rework the mounts, an option I don't have locally.

 

[LandCruiserPhil]

After several trips Im loving this mod but without 2nd gear start it not going to be comfortable.

 

[Delancy]

After several trips Im loving this mod but without 2nd gear start it not going to be comfortable.

Agreed.

The CDL and 7 pin has made a 100% difference in trail ability, as well.

 

[LandCruiserPhil]

Agreed.

The CDL and 7 pin has made a 100% difference in trail ability, as well.

I prefer unpluging the low range switch from the tcase and get OD in low range

The ~25% speed increase is needed with this mod. Change in shift points become with 2nd gear starts.

 

[Delancy]

Pardon my ignorance, but are you saying that OD isn't possible without unplugging at TC?

I was happy with whatever tallest gear was afforded currently, but if improve able......

 

[alia176]

Pardon my ignorance, but are you saying that OD isn't possible without unplugging at TC?

It's a hit & miss with some 80s. I have OD in 4Low but some don't. Not sure why that is.

 

[LandCruiserPhil]

It's a hit & miss with some 80s. I have OD in 4Low but some don't. Not sure why that is.

True ^^^ never been lucky enough to owned one with OD in low range from the factory