Author Topic: 3.0 tire to gear questions  (Read 918 times)

0 Members and 1 Guest are viewing this topic.

mdtrail-toy

  • Offline Rock Master
  • ***
  • Turtle Points: 547
  • Male Posts: 238
  • Member since Aug '15
  • Crawling with Marlin
    • View Profile
3.0 tire to gear questions
« on: Aug 23, 2015, 03:05:54 PM »
Ok so im in the process of building my 1st s.f.a.  and have most of it either figured out or planned. Except for my gears. I have a 90' extra cab Sr5. with factory 4.56 r&p.  I plan on running 35's but this will b more of a d.d. than dedicated trail rig. I already have an extra 4.10 set up in a 3rd. One set of 5.29's just sitting unistalled.  But dont know if 5.29 may be to much for a d.d. or should i go 4.88. I hear alot with the 22re but not so much for v6. Either way still need to buy one if not 2 sets.  Any info or thoughts would b great. Its mu last big issue holding up progress. THANKS

Snowtoy

  • Offline The 2K Group
  • ***
  • Turtle Points: 844
  • Male Posts: 2,462
  • Member since Sep '03
    • View Profile
Re: 3.0 tire to gear questions
« Reply #1 on: Aug 23, 2015, 04:37:20 PM »
If you have a 5-spd, the 5,29's would be the correct choice of gears for 35's, if you have an auto, the 5.29's are your only choice.   35's are about 11.5% bigger than the 31's(oem tire package), the 4.88's are about 6.5% taller than the 4.56's, meanwhile the 5.29's are about 13.5% taller.  You would be under geared by about 5% with the 4.88's(think 5% loss in HP performance), while with the 35''s you would be 2% over geared(not sure if you would see it, maybe on the upshift between 3rd and 4th).  The 5% power loss would be fine if it was a dedicated trail rig, but as a DD the performance loss wouldn't be worth going with 4.88's.  I have ran a set of 35's on my '90 with 4.88's, and every hill I could climb with ease in 5th, I struggled with in 4th.
'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod

mdtrail-toy [OP]

  • Offline Rock Master
  • ***
  • Turtle Points: 547
  • Male Posts: 238
  • Member since Aug '15
  • Crawling with Marlin
    • View Profile
Re: 3.0 tire to gear questions
« Reply #2 on: Aug 23, 2015, 05:19:41 PM »
 :thumbs: thanks snowtoy appropriate the input.  And yes it is a 5spd.the 5.29's are what I had always planned on running but after talking with a few friends they looked at me like I had three heads when I said I was running them. And good looking truck a lot like mine.  Thanks

1985CRAWLER

  • Offline The 1K Club
  • *
  • Turtle Points: 267
  • Male Posts: 1,163
  • Member since Feb '13
  • Backyard Built
    • View Profile
Re: 3.0 tire to gear questions
« Reply #3 on: Aug 24, 2015, 12:09:30 AM »
529s will be a good setup for you. :thumbs:
low n' slow 85 runner SR5 22re,rcvs ,Duals,5.29s,Detroits f&r,40s,RUF,Chevy 63 rears,Armored,Cage

bobbed and beat 91 ex cab,3RZ swapped,dual ultimates, dana 44 sas 5.38/5.29 combo,37s, RUF, 63 rears,ARB front, detroit rear,cage

http://board.marlincrawler.com/index.php?topic=96250.msg1073007;topicseen#msg1073007

http://board.marlincrawler.com/index.php?topic=26920.390

mdtrail-toy [OP]

  • Offline Rock Master
  • ***
  • Turtle Points: 547
  • Male Posts: 238
  • Member since Aug '15
  • Crawling with Marlin
    • View Profile
Re: 3.0 tire to gear questions
« Reply #4 on: Aug 24, 2015, 09:52:17 AM »
So I'm not crazy after years off planing 5.29`s it is so I only have to buy a rear set rather than 2 sets of 4.88`s. Thanks guys. 

 
 
 
 
 

Related Topics

10 Replies
1610 Views
Last post Mar 22, 2006, 08:46:25 PM
by 79coyotefrg
61 Replies
8867 Views
Last post Jan 01, 2008, 05:03:20 PM
by crawlerdan
5 Replies
1501 Views
Last post Oct 17, 2010, 11:22:02 AM
by 12GA.YOTA
6 Replies
2132 Views
Last post Jul 07, 2011, 06:12:05 PM
by twistedtoy92
10 Replies
894 Views
Last post Aug 24, 2019, 06:40:10 PM
by blackdiamond