Hey guys. Probably a bit of a silly question. But I can't find good info for it.
So I have looked around and found some stuff on calibrating a speedometer for a truck with an auto. But my 89 has a stick. The hm290 I believe. The truck had 3.08 gears but I changed them to 3.73 gears because all of my bearings were shot anyway. I also added a posi unit but that is beside the point.
I'd like to get my speedo a little closer, but if it's gunna be a pain or too costly I'll just stick an aftermarket gauge in there. I read something about rewiring some contact points in a box behind the glove box, but I didn't get very specific info on that. Is there a speedo gear on the trans I can change? How do I do it?
I appreciate any info you guys can give me on the subject. Thanks
So I have looked around and found some stuff on calibrating a speedometer for a truck with an auto. But my 89 has a stick. The hm290 I believe. The truck had 3.08 gears but I changed them to 3.73 gears because all of my bearings were shot anyway. I also added a posi unit but that is beside the point.
I'd like to get my speedo a little closer, but if it's gunna be a pain or too costly I'll just stick an aftermarket gauge in there. I read something about rewiring some contact points in a box behind the glove box, but I didn't get very specific info on that. Is there a speedo gear on the trans I can change? How do I do it?
I appreciate any info you guys can give me on the subject. Thanks