Topic: Confused about gearing (Read 16715 times)

gazjeep · « **Reply #50 on:** March 04, 2015, 07:26:57 PM »

True Tracs front & rear are probably the best compromise for on & off road IMHO

Graham · « **Reply #51 on:** March 04, 2015, 07:46:27 PM »

Still waiting for the build sheet....

isle of man · « **Reply #52 on:** March 04, 2015, 07:53:42 PM »

Quote from: gazjeep on March 04, 2015, 07:26:57 PM

True Tracs front & rear are probably the best compromise for on & off road IMHO

When you are ready for long trousers the Short Tracks will be soooooo last year.

gazjeep · « **Reply #53 on:** March 04, 2015, 08:58:48 PM »

Quote from: isle of man on March 04, 2015, 07:53:42 PM

Quote from: gazjeep on March 04, 2015, 07:26:57 PM
True Tracs front & rear are probably the best compromise for on & off road IMHO

When you are ready for long trousers the Short Tracks will be soooooo last year.

Not lockers I'll grant you but very capable & still makes the Jeep usable on the road, it aint no trailer queen princess

georgen · « **Reply #54 on:** March 04, 2015, 10:05:19 PM »

I removed my LSD as it was like 80% of others and didnt work and fitted a powertrax locker, you can get them for the LSD carrier and the open diff carrier.

Yakko · « **Reply #55 on:** March 05, 2015, 06:07:49 PM »

Well, that was frsustrating.

New axles (4.10s) were supposed to be delivered, so left the Mrs in the house to sign for them. TNT turn up, knock on the door, driver says he's got the axles, but no way of getting them off the truck, so he just left.

I phoned up and had a rant, they're coming back tomorrow with a truck with a tail lift.

TNT think that the weight for 2 TJ axles is 245kg! That can't be right, I've moved English axles (Land Rovers) around on my own, and I'm no weight lifter!

JamesH · « **Reply #56 on:** March 05, 2015, 06:15:28 PM »

I can sympathise, I had 1500 slate roof tiles delivered and the guy just turned up with them in 3 crates in the back of a truck expecting me to have a telehandler or something.

A few phones calls and you'll get it sorted

I wouldn't be surprised if the front is 100kg if it's got shafts, brakes etc, not sure about a rear one as I haven't moved one recently.

wildwood · « **Reply #57 on:** March 05, 2015, 06:33:00 PM »

With all its bits a front dana30 is an unpleasant struggle by yourself maybe 200lbs
The rear less so.......150lbs

At least that's what they seemed like to me.

My 1 tonne axles were painful and dangerous to lift with two of us

Yakko · « **Reply #58 on:** March 06, 2015, 08:05:33 AM »

Here's a question. Going to start this first thing tomorrow morning. I use my TJ as my runabout as it's miles more fun around town than my daily driver Volvo.

If I get one axle done, I can still use the car, even though the axles will be different ratios as long as I don't put it into 4WD? The front axle will just be free-wheeling, right?

wildwood · « **Reply #59 on:** March 06, 2015, 09:14:29 AM »

Leave the front prop off!

Yakko · « **Reply #60 on:** March 06, 2015, 09:40:49 AM »

Good point!

georgen · « **Reply #61 on:** March 06, 2015, 03:50:27 PM »

You can leave the prop on, just Dont put it into 4 wheel drive. drove mine for a couple of weeks with front 4.88 and rear 3.07

Yakko · « **Reply #62 on:** March 06, 2015, 05:27:50 PM »

Need some opinions Birtys.

Axles turned up today - predictably they're 3.73s instead of 4.10s. (No tags on the axles, but if I turn a rear shaft once, the prop goes round about 3 and 3 quarter turns).

Spoke to the seller who says he'll take them back.

OR do I just go with 3.73s instead? I've done the gearing calcs, there's not much in it (only 10% difference between the two ratios). Can't see me ever going over 33s to be honest. Seller is looking round the yard (they're a Jeep breaker) for some 4.10 axles, but I'm not very confident.

I thought I'd go with plan A and get my 3.07s geared to 4.56 but I'd need new carriers for that anyway, as my 3.07 carriers won't take 4.56s.

What do you think?

isle of man · « **Reply #63 on:** March 06, 2015, 05:36:12 PM »

Your well and truly fooooked, send the shiet back if you can.

JamesH · « **Reply #64 on:** March 06, 2015, 06:03:34 PM »

3.73 will be spot on for 31s and you will notice a definite difference. IF you can get a full refund it makes the decision more tricky. I think I'd end up fitting them and just saving for repeat and lockers at a later date.

Yakko · « **Reply #65 on:** March 06, 2015, 06:09:29 PM »

Thanks, but it's 33s I want to run.

Gearing calculator suggests that 33s on 3.73s will actually be better than 31s on the 3.07s (which is my current set up), this ignores the extra weight and wind resistance of the larger tyre though.

Yes, can get a full refund, but can't find 4.10 axles anywhere.

wildwood · « **Reply #66 on:** March 06, 2015, 06:15:09 PM »

I would get the refund and sit on YA wedge.......

The cheaper alternative would be XJ a cherokee 2.5 petrol axles ....also 4.10:1
Front will fit no prob......the rear had leaf springs but you can get all the bits to weld on.

Ezz · « **Reply #67 on:** March 06, 2015, 06:15:20 PM »

I drove my TJ on 4:10 with 35" tyres and it was horrible

I'd guess 3:73 and 33s would be similar

isle of man · « **Reply #68 on:** March 06, 2015, 06:17:39 PM »

Quote from: Ezz on March 06, 2015, 06:15:20 PM

I drove my TJ on 4:10 with 35" tyres and it was horrible

I'd guess 3:73 and 33s would be similar

Indeed...

Graham · « **Reply #69 on:** March 06, 2015, 06:29:17 PM »

I wish I'd have spotted the post earlier. I'm pretty sure the only TJ with 4:10 was the rubicon (although the rubi was also D44 front)

I believe the 2.5 XJ had 4:10s and I think it crept into myth that the baby TJ did too.

Yakko · « **Reply #70 on:** March 06, 2015, 06:37:06 PM »

Quote from: Ezz on March 06, 2015, 06:15:20 PM

I drove my TJ on 4:10 with 35" tyres and it was horrible

I'd guess 3:73 and 33s would be similar

Yes, pretty much bang on the same according to the gear calcs, although both better than the 31s on 3.07 I have now apparently.

Quote from: Graham on March 06, 2015, 06:29:17 PM

I wish I'd have spotted the post earlier. I'm pretty sure the only TJ with 4:10 was the rubicon (although the rubi was also D44 front)

I believe the 2.5 XJ had 4:10s and I think it crept into myth that the baby TJ did too.

I'm not sure that's right, everything I've read says the 4 cylinder TJs got 4.10s.

E.g. http://www.fourwheeler.com/project-vehicles/154-1001-jeep-wrangler-tj-buyers-guide/

I don't know why some got 3.73s. (That said, your 4 cylinder was 3.73s, and I've got 3.73 axles here, so evidence suggests otherwise).

Yakko · « **Reply #71 on:** March 06, 2015, 06:44:19 PM »

What did I think about / spend money on before I got my Jeep!?

Mike Pavelin · « **Reply #72 on:** March 06, 2015, 06:57:02 PM »

If they didn't cost a fortune, stick them on, you'll notice a considerable improvement. Keep your others for later when you can rebuild them at your leisure if you still feel the need. Remember you're getting 4 spare halfhafts, hubs etc. as well as the axles in case you need them.

georgen · « **Reply #73 on:** March 06, 2015, 07:18:46 PM »

Is the Axle ratio difference from what you read not just USA spec and not Uk spec, after all we got the dana44 across the range where they got the 35 .
If they were cheap enough sling them on and do the changes to your current axls as you go along, yes its not the jump in gearing you wanted but you could prob live with it on 33,s till you sort the others at you leisure.

Yakko · « **Reply #74 on:** March 06, 2015, 07:53:36 PM »

Yeah, could be a US vs Export spec thing.

Thanks for the opinions chaps - this is a great forum.

Author Topic: Confused about gearing (Read 16715 times)

georgen

Yakko

Yakko

Yakko

georgen

Yakko

Yakko

Yakko

Yakko

Mike Pavelin

georgen

Yakko