wolfman81yota

Can anyone please tell me the stock ring and pinion gear ratios for a 1981 toyota pickup? I need to install lower gears for crawling on the trails and I am a newbie at this. Be gentle, lol!

Tofer

4.10s

MudHippy

Nope. 1981 was the one, and only, year that 4WD PUs came with 3.90s(no options).



1st Gen:
79-80 = 4.38
81 = 3.90
82 = 4.11
83 = 4.10

2nd Gen:
84-88 = 4.10 or 4.30

jason191918

where is that image from?

muddpigg

iTrader: (1)

Mud hippy is right that that year came stock with 3.90's. Here's two other ways to tell:
Example: G292 = 8.0" 4.10 final ratio 2 pinion
Code:
1ST R&P SIZE 2nd/3rd R&P RATIO 4th DIGIT PINION SET-UP
F = 7.5" 07 = 3.900 2 = 2 pinion
G = 8.0" 08 = 4.110 3 = 2 pinion LSD
10 = 4.375 4 = 4 pinion
14 = 4.875 5 = 4 pinion LSD
25 = 4.556
28 = 4.300
29 = 4.100
31 = 3.91
38 = 3.42
43 = 3.56
54 = 3.90
66 = 3.07
.
.
Code:
Ratio Ring/Pinion Color Crawl:Ratio
3.42 ...42/12... Purple ...31:1
3.90 ...39/10... Red... ...36:1
4.10 ...41/10... Pink.. ...37:1
4.11 ...37/09... Orange ...37:1
4.30 ...43/10... Blue.. ...39:1
4.37 ...35/08... Green. ...40:1
4.56 ...41/09... Yellow ...41:1
4.88 ...39/08... White. ...44:1
5.29 ...37/07... None.. ...48:1
5.71 ...40/07... None.. ...51:1

MudHippy

Here's the link.

jason191918

nice, thanks.

wolfman81yota

thanks for the info guys. no wonder my truck is gutless as all hell! I'm pushing 33's.

shaunneuhaus95

hi jaked (maybe ) how do i find out what gears my 94 3slow runner has

4Crawler

iTrader: (3)

Search.

Or if too lazy to do so:
- http://www.4crawler.com/4x4/4R_TechI...oDetermination

shaunneuhaus95

i did, just not the right way. thanx

rattlewagon

Ive always liked this page.

http://www.brian894x4.com/Gearratiosanddiffs.html

dahondaboy

i am in the same boat, i have an 81 2wd on 33x12.50 15's with stock gears and need to regear. were you able to find some and if so where and what size did you go with?