Mike "Wuzzy121". Rest in peace, brother

Go Back   Tacoma World Forums > Tacoma Garage > Performance and Tuning

Notices

Re-gearing HELP with Ring and Pinion!!

Reply
 
Thread Tools Search this Thread
Old 07-02-2014, 11:01 AM   #1
pLon [OP] pLon is offline
Senior Member
pLon is on a distinguished road
 
pLon's Avatar
Name: Heriberto
Joined: Oct 2011, #64556
Location: TJ
Gender: Male
Posts: 146
pLon's Tacoma Gallery
Exclamation Re-gearing HELP with Ring and Pinion!!

Hi, my Tacoma is a 2006 TRD off road (4WD w/electric locker on the rear)
I want to re-gear to 4.88 but have found very difficult to determine which ring and pinion type do I need

I've contacted Richmond (Motive) and they replied the correct part numbers would be Rear- T488V6, Front- TAC488IFSL
The rear kit says it have a RG diameter of 7.8", and pinion diameter of 1.3785" 27 splines
The front kit says it have a RG 7.5” diameter and a pinion diameter of 1.378” 23 splines

On the yukon website per selected options looks like I need YG TV6-488 for the front which specifies 8.125" ring gear diameter, 27 spline pinion (no diameter measurement), and for the front yukon have two kits YG TLCF-488R-CS and YG TLCF-488R-CS-T, the last one with the T in the catalog string says to have a thick gear for 3.73 and down carrier (I believe we have 3.73 stock) these kits specify 8" ring gear diameter, 29 spline pinion

I've also contacted eastcoastgearsupply but they just responded with a link to the front/rear gear package, it doesn't give any specifications at all so I don't know which ring and pinion will be selected with these, plus being a lot more expensive (almost $1200) than just getting ring and pinion without all the bearings and seals...

How can these two brands have such a different kits and say these fit our vehicles, what ring and pinion diameter do we have from factory? how many splines is our pinions? this is getting very frustrating
  Reply With Quote
Old 07-02-2014, 04:25 PM   #2
pLon [OP] pLon is offline
Senior Member
pLon is on a distinguished road
 
pLon's Avatar
Name: Heriberto
Joined: Oct 2011, #64556
Location: TJ
Gender: Male
Posts: 146
pLon's Tacoma Gallery
Anyone
  Reply With Quote
Old 07-02-2014, 04:29 PM   #3
Bullwinkle J. Moose
bjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shed
 
bjmoose's Avatar
Name: Steve
Joined: Aug 2010, #42529
Location: San Jose CA
Gender: Guy
Posts: 4,708
bjmoose's Tacoma Gallery
I wouldn't worry too much about exact dimensions and spline counts. I'd worry about ordering the right part number.

For a 2006 - that's getting pretty long of tooth - I'd replace the bearings and seals as well anyway.
  Reply With Quote
Old 07-03-2014, 06:45 AM   #5
pLon [OP] pLon is offline
Senior Member
pLon is on a distinguished road
 
pLon's Avatar
Name: Heriberto
Joined: Oct 2011, #64556
Location: TJ
Gender: Male
Posts: 146
pLon's Tacoma Gallery
Quote:
Originally Posted by Torspd View Post
E-locker versus non E-Locker. Different size diffs.
So what size should I be looking for my e-locker differential?
Also front ring and pinion sizes doesn't match between brands and those should be the same no matter if you have locker on the rear or not right?
  Reply With Quote
Old 07-03-2014, 11:58 AM   #6
pLon [OP] pLon is offline
Senior Member
pLon is on a distinguished road
 
pLon's Avatar
Name: Heriberto
Joined: Oct 2011, #64556
Location: TJ
Gender: Male
Posts: 146
pLon's Tacoma Gallery
I asked eastcoastgearsupply.com for the kit technical details on their kit and this is what they replied back

"The ring gears are both 7.8”, the pinions both have 29 splines and are the same as stock on 05+ Tacomas."

Now I'm more confused...
  Reply With Quote
Old 07-03-2014, 06:21 PM   #7
Bullwinkle J. Moose
bjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shedbjmoose is one of the sharper tools in the shed
 
bjmoose's Avatar
Name: Steve
Joined: Aug 2010, #42529
Location: San Jose CA
Gender: Guy
Posts: 4,708
bjmoose's Tacoma Gallery
Most folks order based on part number, desired ratio, and the characteristics of the diff they're swapping it into (i.e. e-locker vs. non-elocker)

Not sure why you're insisting on trying to figure out the finer details of spline counts and diameter as measured on the ruler vs "nominal" diameter. Are you planning on looking for replacements from wrecking yard trucks?
  Reply With Quote
Old 07-04-2014, 11:35 PM   #8
pLon [OP] pLon is offline
Senior Member
pLon is on a distinguished road
 
pLon's Avatar
Name: Heriberto
Joined: Oct 2011, #64556
Location: TJ
Gender: Male
Posts: 146
pLon's Tacoma Gallery
no, I'm just trying to order the correct parts, I have looked into 3 different brands as I have described in the initial post and each one of them have offered me a much different parts kit
  Reply With Quote
Old 07-05-2014, 03:49 AM   #9
Never take the bait
Jasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shed
 
Jasmine's Avatar
Name: Stop giving me nicknames
Joined: Dec 2011, #68304
Location: 626 (So-cal)
Gender: Chick
Posts: 6,233
Jasmine's Tacoma Gallery
Don't be confused by spline counts.. as I'm sure at least one person you talked to might have given you bad info.

You need Toyota 8" Clamshell IFS Front for the front
Toyota 8" V6 for the rear.

No matter where you search.. the right parts should pop up.
If you don't want an assembled third ready to go.. and would rather buy the ring and pinion separate and pay to have someone set it up, I've used justdifferentials.com and had great service who knew what parts were needed (since you will also need to buy at the very least a mini install kit).

Looks like what you selected on yukon was correct.
  Reply With Quote
Old 07-05-2014, 08:00 AM   #10
Senior Member
Dragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shed
 
Dragons Taco's Avatar
Name: Derek
Joined: Jan 2012, #70993
Location: Morrisville/Raleigh NC
Gender: Male
Posts: 1,359
Dragons Taco's Tacoma Gallery
I get the OP's confusion. If two companies return part #'s with different specs, and a third provides no specs, then how can you have confidence that what you drop over a grand on is right?

Sub'd for what you wind up with.
  Reply With Quote
Old 07-08-2014, 07:42 AM   #11
pLon [OP] pLon is offline
Senior Member
pLon is on a distinguished road
 
pLon's Avatar
Name: Heriberto
Joined: Oct 2011, #64556
Location: TJ
Gender: Male
Posts: 146
pLon's Tacoma Gallery
Quote:
Originally Posted by Dragons Taco View Post
I get the OP's confusion. If two companies return part #'s with different specs, and a third provides no specs, then how can you have confidence that what you drop over a grand on is right?

Sub'd for what you wind up with.
Exactly, I was reading an interesting article on toyota's differentials
http://home.4x4wire.com/erik/diffs/
On the e-lock differentials they state the following "30 spline pinion on OEM gears, swap pinion flange to 27 spline to use aftermarket gears", so that's why numbers didn't matched I think, the nitro package (sold by eastcoastgearsupply.com) seems to include the pinion flange so no worries there, but what if I have bought the motive ring and pinion sets by separate? shouldn't they advice "you will have to buy or fabricate a new pinion flange in order to use our aftermarket gears", also what about the front differential? am I OK just with ring an pinion set?
  Reply With Quote
Old 07-08-2014, 09:04 PM   #12
Senior Member
Dragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shed
 
Dragons Taco's Avatar
Name: Derek
Joined: Jan 2012, #70993
Location: Morrisville/Raleigh NC
Gender: Male
Posts: 1,359
Dragons Taco's Tacoma Gallery
Re-gearing HELP with Ring and Pinion!!

More to this than meets the eye. I'm all about DIY, but maybe 3rd member exchange makes more sense.

I'm in Raleigh , maybe I can drop by east coast and ask questions.
  Reply With Quote
Old 07-08-2014, 09:58 PM   #13
Never take the bait
Jasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shedJasmine is one of the sharper tools in the shed
 
Jasmine's Avatar
Name: Stop giving me nicknames
Joined: Dec 2011, #68304
Location: 626 (So-cal)
Gender: Chick
Posts: 6,233
Jasmine's Tacoma Gallery
Quote:
Originally Posted by pLon View Post
Exactly, I was reading an interesting article on toyota's differentials
http://home.4x4wire.com/erik/diffs/
On the e-lock differentials they state the following "30 spline pinion on OEM gears, swap pinion flange to 27 spline to use aftermarket gears", so that's why numbers didn't matched I think, the nitro package (sold by eastcoastgearsupply.com) seems to include the pinion flange so no worries there, but what if I have bought the motive ring and pinion sets by separate? shouldn't they advice "you will have to buy or fabricate a new pinion flange in order to use our aftermarket gears", also what about the front differential? am I OK just with ring an pinion set?
That's why you have to do the difficult research. They can't really advise you for the flange since there are multiple applications for a ring and pinion besides the Tacoma. If you called someone specializing in Toyota gears, like Yotamasters, they would be better equipped to help you. Nitro gears can be used with your stock pinion flange, but I do not think other brands can. Don't forget your install kits as well.
  Reply With Quote
Old 07-11-2014, 08:48 PM   #14
pLon [OP] pLon is offline
Senior Member
pLon is on a distinguished road
 
pLon's Avatar
Name: Heriberto
Joined: Oct 2011, #64556
Location: TJ
Gender: Male
Posts: 146
pLon's Tacoma Gallery
Quote:
Originally Posted by Jasmine View Post
That's why you have to do the difficult research. They can't really advise you for the flange since there are multiple applications for a ring and pinion besides the Tacoma. If you called someone specializing in Toyota gears, like Yotamasters, they would be better equipped to help you. Nitro gears can be used with your stock pinion flange, but I do not think other brands can. Don't forget your install kits as well.
Yup nitro is the only brand that uses 29 spline pinion as stock (supposed to be stronger than 27 spline pinions previously used) all the rest of the aftermarket brands haven't wanted to update the design so they force you to buy a pinion flange (27 spline) in order to use their gears, so I think I will buy their front and rear gearing packages with the respective install kits
Thank you all for your support I had no idea changing gears in a tacoma where going to be this difficult
  Reply With Quote
Old 07-12-2014, 06:37 PM   #15
Senior Member
Dragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shedDragons Taco is one of the sharper tools in the shed
 
Dragons Taco's Avatar
Name: Derek
Joined: Jan 2012, #70993
Location: Morrisville/Raleigh NC
Gender: Male
Posts: 1,359
Dragons Taco's Tacoma Gallery
Lol isn't this the easy part? You still gotta start the work. I patiently await the pics of your actual progress!
  Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ring and Pinion Q's bowhunter11199 1st Gen. Tacomas 33 03-24-2013 07:24 PM
What ring and pinion? wesrunner 4 Cylinder 7 08-30-2012 12:25 PM
Ring and pinion snowgod06 2nd Gen. Tacomas 21 03-21-2010 08:31 PM
ring and pinion paul gallardo 2nd Gen. Tacomas 4 02-14-2010 07:32 AM
ring and pinion jerris Technical Chat 20 11-03-2009 09:34 AM


Copyright © 2014 Tacoma Forum. Tacoma World is not owned by, or affiliated with Toyota Motor Corporation.