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ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: tracker8wr on April 10, 2005, 01:49:02 PM

Title: toyota axle gears
Post by: tracker8wr on April 10, 2005, 01:49:02 PM
what is the largest size R&P i should go with in a 85 toy truck front axle. i have heard rumor about the larger sizes compromising the strenght of the pinion shaft due to the fact of it small size.
Title: Re: toyota axle gears
Post by: mesjr2004 on April 10, 2005, 02:56:01 PM
i think unless your running a v8 dont worry about it in a 2500lb tracker .imo
Title: Re: toyota axle gears
Post by: tracker8wr on April 10, 2005, 03:28:22 PM
i heard this from a guy who runs a flatbed yota pickup with a four banger on 38.5" swampers.
Title: Re: toyota axle gears
Post by: zeb on April 10, 2005, 03:59:32 PM
how big of tires are you going to be running. I have a zuk with 35's but going to 38's soon and running 5.71. also had a toy pickup daily driver for 4 years 35's and ran 5.71 no problems with pinion shafts.
Title: Re: toyota axle gears
Post by: blyota91 on April 10, 2005, 11:28:17 PM
I've always heard 5.71 is pushing it due to the strength of the pinion gear, most guys don't recommend anything above 5.29's.

Andrew
Title: Re: toyota axle gears
Post by: tracker8wr on April 11, 2005, 12:12:17 AM
blyota that is the same thing i was told. for now i am going to run 37" irocs biasply. i had orginaly said 35 to 37" but i may swap to 40s later and tube it out next year so my duaghter will have something safe to drive.
Title: Re: toyota axle gears
Post by: Natebert on April 11, 2005, 06:50:55 AM
The land crusier guys don't usually  recommend anything above 4.88s.

~Nate
Title: Re: toyota axle gears
Post by: mesjr2004 on April 11, 2005, 10:14:31 AM
has anyone done a side by side comparison with the tracker 5.13 and the yota 5.71 . ive had them both apart and bont rember any alarming differences in the size of the pinion shaft. i am running 5.71s in mt track and breaking them is the farthest thing from my mind . have any of you driven a tracker with 34"-35"tires with a stock motor ? break the pinion shaft  ya rite ,maybe if you stucket on the revlimiter put in 2nd gear and sidesteped the clutch maybe , but probably not. these trackicks weigh probably 1000lbs less than a toy truck,and have fewer ponies . but i may be wrong
Title: Re: toyota axle gears
Post by: Natebert on April 12, 2005, 02:18:44 AM
FYI
We have a Sammy owner here in town on 35 baja claws, equiped with a 1.6 8v with the weber carb and he brakes his 4:10's all the time.  Granted he's the hardest on stuff of any guy I know, but he still brakes them mini-truck axles and gears in a sammy, with no crawler gears in the t-case.  (it's always the either the axles or pinion gear which gives out.)

Our truck-let (if I can still say that anymore) weights in just about as much as a fullsize land cruiser.  (~4800lbs loaded with camping gear.)

With the dual t-cases, one with 4.24 and one with 2.2 gears, I think I've got enough torque to brake stuff handily.  Which is why I upgraded to larger axles to begin with, I'd hate to think that I'd be taking steps backwards by 'upgrading' gears to something weaker.

But then again, to each their own.
:)

~Nate
Title: Re: toyota axle gears
Post by: chet on April 12, 2005, 06:19:36 AM
I had a 5500 lb toy on 4.37's and 37's and never broke a ring and pinion. I have numerous club members with toys on 5.29's and they rarely have problems and most of them have 37" tires and dual tcases. I would not go to the 5.71's they are pretty small!
Title: Re: toyota axle gears
Post by: zukatude on April 12, 2005, 09:13:01 AM
Quote
i think unless your running a v8 dont worry about it in a 2500lb tracker .imo


How are you getting a tracker with toy axles and decent sized (33"+) tires down to 2500 lbs?  

Remove all glass/fenders/doors?

Incidentally, I put 5.29 gears into my toys.  The 5.29 pinion is TINY compared to the stock 4.10.  I personally wouldn't go any smaller than 5.29 especially if you have deep crawler gears.
Title: Re: toyota axle gears
Post by: tracker8wr on April 12, 2005, 09:14:57 AM
i am actually planning on 4.88 gears and a sammi t-case reduction to give me a good running gear ratio. thanks for all the input.
Title: Re: toyota axle gears
Post by: mesjr2004 on April 12, 2005, 11:17:14 AM
Quote


How are you getting a tracker with toy axles and decent sized (33"+) tires down to 2500 lbs?  

Remove all glass/fenders/doors?

Incidentally, I put 5.29 gears into my toys.  The 5.29 pinion is TINY compared to the stock 4.10.  I personally wouldn't go any smaller than 5.29 especially if you have deep crawler gears.



i read somewear the curb weight was under 2500lbs
Title: Re: toyota axle gears
Post by: Mikerpm4x4 on April 12, 2005, 12:50:08 PM
Quote



i read somewear the curb weight was under 2500lbs

I was told stock curb weight empty was 2150. Ive never checked though.

Mike
Title: Re: toyota axle gears
Post by: mesjr2004 on April 12, 2005, 01:32:17 PM
Quote

I was told stock curb weight empty was 2150. Ive never checked though.

Mike



theirs a grain elivator with scales about 7 miles from my house i may have to go weigh the tracker one of these days.
Title: Re: toyota axle gears
Post by: rockrat on April 18, 2005, 09:11:11 AM
5:71 Toy pinion is still larger then a stock 3:73 zuk gear. I have 5:71 with a vortec v-6 auto trans and dual toy cases with 5:01 gears in the rear case. no problems under the weight os a zuk or kick. My opinion based on running them.