Speedometer gear reducer 90 degree 1565180 $75 shipped to lower 48
May 5th, 2020, 01:48 PM
#2
Registered User
Join Date: Jan 2009
Location: Flat Rock,Michigan
Posts: 326
I am not familiar with this unit. Is it for 4 speeds or automatics? can this use different gears to accommodate different gear ratios? is it for a 1970,or is it year specific? forgive my ignorance,is it proper for 1968 also? Please educate me,thanks.
May 5th, 2020, 03:10 PM
#3
MOTORHEAD
Thread Starter
Join Date: Feb 2011
Location: minnesota USA
Posts: 6,740
https://speedometercablesusa.com/gear_box_adapters.html
The adapters are used to make speedometer read correctly to compensate for tire size and ratio. From what I can find (link above) this particular one is is for speedometer reading 26% slower than actual speed. So , it will make speedometer read higher, I did not remove this from a car personally. I discovered it while digging through parts I acquired years ago. My 1972 Cutlass with M20 4 speed has an angled adapter that looks like this , but I am not sure what ratio that one is??
May 5th, 2020, 09:16 PM
#5
Registered User
Join Date: Aug 2009
Location: Muskegon, Mi.
Posts: 8,696
My '69 W31 had one. It is a factory 4:33 geared 4 speed car. The previous owner swapped in a set of 3:42's and kept the adapter on, I removed it as it read high, turns out the driven gear used with it was correct for the 3:42's. I still have it tucked away.
Thread
Thread Starter
Forum
Replies
Last Post
