Current Classifieds

Hood Hinge rubber boots
Date: 09/28/2018 05:49 pm
Need Brakes for 1971 Pinto
Date: 04/27/2018 11:48 pm
1977 Pinto Hatchback Parts

Date: 08/29/2020 05:31 pm
parts needed
Date: 02/20/2017 07:58 am
nos core support

Date: 01/03/2020 09:39 pm
Anyone scrapping a 1980
Date: 03/13/2020 08:46 pm
WTB: 2.0 Mech tach drive distributor
Date: 04/14/2023 06:15 am
Front sway bar

Date: 07/23/2018 08:19 pm
73 actuator for heater blend door
Date: 09/19/2019 04:43 pm
74 Pinto Hub Caps & Trim Rings

Date: 02/18/2017 04:47 pm
Seeking reveal molding for driver's door for a 1980 Squire Wagon
Date: 11/08/2020 02:10 pm
hubcaps

Date: 10/31/2018 12:04 pm

« previous next »
Pages: [1]   Go Down

Author Topic: Rear end gear ratios  (Read 1933 times)

0 Members and 1 Guest are viewing this topic.

Offline popbumper

  • Pinto Master
  • *****
  • Posts: 1919
  • FeedBack: +100/-1
  • Gender: Male

    • Total Badges: 8
    Badges: (View All)
    Tenth year Anniversary Topic Starter Signature Mobile User Poll Voter Windows User 1000 Posts Fifth year Anniversary
Rear end gear ratios
« on: February 13, 2015, 09:55:20 AM »
Can anyone tell me what the factory gear ratios were for the following rear ends?

1976 wagon MPG model with 2.3L, 6.75" rear end
1978 glass hatch V6 model 8" rear end (white car with red accents, factory mags and center caps) - I think this was a package

Thank you!

Chris
Logged
Restoring a 1976 MPG wagon - purchased 6/08

Offline jonz2pinto

  • Pinto Member
  • **
  • Posts: 83
  • FeedBack: +0/-0
  • Gender: Male
  • Another Pinto Driver

    • Total Badges: 4
    Badges: (View All)
    Topic Starter Signature Linux User Mobile User
Re: Rear end gear ratios
« Reply #1 on: February 13, 2015, 10:27:02 AM »
I have had 76 hatch 8" w/3.40 and 77 wagon 8" w/3.08.The 6.75 rears in sedans I had 3.08 s.
Logged
Pinto-is short for pint-o-fun.

Offline dick1172762

  • Vintage Pinto Racer
  • PCCA Management Board
  • Pinto Sr. Master
  • ******
  • Posts: 2623
  • FeedBack: +362/-0
  • Gender: Male
  • I'm a llama!

    • Total Badges: 7
    Badges: (View All)
    Topic Starter Signature Poll Voter Windows User 1000 Posts Tenth year Anniversary Fifth year Anniversary
Re: Rear end gear ratios
« Reply #2 on: February 13, 2015, 10:31:08 AM »
Easy to check. Turn the brake drum one turn and count the number of times the drive shaft turns. One turn of the drum and three turns of the yoke would be 3:00 X 1.  I learned this from a Vega owner when he was trying to see how far he could go before the engine would blow up.
Logged
Its better to be a has-been, than a never was.

Offline Wittsend

  • Pinto Master
  • *****
  • Posts: 2498
  • FeedBack: +241/-0

    • Total Badges: 8
    Badges: (View All)
    Tenth year Anniversary Mobile User Topic Starter Poll Voter 1000 Posts Linux User Windows User Fifth year Anniversary
Re: Rear end gear ratios
« Reply #3 on: February 13, 2015, 12:53:40 PM »
Been there, done that. Though I will say with driveline slop the difference between say... 3.40 and 3.55 can, at times, be hard to discern. The 8" "should have a tag showing the ratio.  When I would go to Pick A Part looking for an 8" rear I would always write in the dust on the rear glass the ratio - helps out the next guy from having to crawl under.

  Once I tried to detect the 1st gear ratio of a Jeep Toploader. I had to crank over that V-8 engine by hand over three times before I could detect that it WASN'T the T-178 transmission I was hoping it was. I was more doing pull-ups under the Jeep than I was getting rotation.
Logged
Pages: [1]   Go Up
« previous next »