well i did't put the aftermarket tach in yet and i got a factory cluster with a tach and its from the same year and i put it in with the speedo that was in the cluster when i bought it in and it will idle up but when i push in on the clutch and shift in to 1st or reverse it wants to die and it sputters but i put my factory cluster back in it and it worked fine and i put the new one with a tach back in it with my speedo (thought the little millege computer was killing it) and it wants to die again is there any thing i can do or is it just better to put the factory cluster that came in my truck back in it and put the aftermarket tach in

 

Tell us more about your truck - year, model, motor, tranny, etc.

 

its a 95 f150 with 4.9 and 5 spd and the new cluster i got was from a 95 i know it is cause i pulled it out of the truck