Has anyone ever used an Abbot Speedcal?

[BitchinCorolla]

Got 4.10s installed a while ago and my speedometer has been off ever since. Originally thought I could change out the speedometer gear but turns out they don’t have any sold that will correct it (I’d need 26 tooth). So my choice is either changing the gear in the back of the transmission or wiring in a speedcal. Leaning towards that option, and from what I’ve found the only one available is the Abbot one (https://lmr.com/item/AEI-ERA/abbot-mustang-electronic-speedometer-recalibrator-era-94-04). Every other link I’ve found has been dead. So… I am wondering if anyone has ever installed this and could walk me through the process? Or is it something I should leave to the shop if I’m not experienced in wire splicing? Or maybe someone has custom fabricated a 26 tooth? Car is a 98 GT 5 speed, last year before it was correctable by a tune… bummer.

 

[TTSaleen]

I have one and it works great.
Here's a link that will help -

Abbott Electronic Ratio Adapter (ERA) Calibration Tables

ERA (Electronic Ratio Adapter) Your Speedometer Solution

Abbott Enterprises, Inc. manufactures and repairs various speed devices for trucks, trailers, buses and the automotive industry.

www.atrol.com

Good luck!
Ryan

 

[joemomma]

I'm going to try to install mine ('94GT, process should be the same) this weekend. I'll let you know what I get in to.

 

[BitchinCorolla]

I'm going to try to install mine ('94GT, process should be the same) this weekend. I'll let you know what I get in to.

Thanks, I appreciate that. It seems simple enough but like I said I’ve never messed with wiring before.

 

[joemomma]

No progress was made lol.