1996 GMC Yukon OEM CS130D to CS144 Alternator Installation

Sucessful 105 Amp Alternator Upgrade to Larger 140 Amp CS144 series Alternator

Hi Randy,

Thank you for your great product and your technical assistance over the phone. I successfully converted my 1996 Yukon SLT with the OEM 100 amp CS130D on the 5.7 motor, to your 140 amp CS144 with the heavy-duty rectifier a couple of weeks ago. It works great! After I installed it my engine idle smoothed out and it even improved the off-the-line power. Before installation, the transmission was starting to slip slightly on high-speed up shifts, but that also went away! I guess the old 100 amp was just not putting out enough power for my vehicle. I did also install the supplemental ground wire you suggested from one of the rear CS144 casing mounting bolt holes to the negative battery cable.

I ran into a couple of installation issues that I would like to pass on to you so you can post it on your installation help page. I included some pictures for help, use the ones you like.