1996 ranger 3.0 low power driving and towing

[matt22]

I got a 96 ranger 3.0 4x4 that just does not have any power. Did the tune up but nothing. Is it the cats?? If I take them off is there a way to "dummy" the O2 sensor on the second cat??? Thanks

 

[Rearanger]

Miles? Compression test? Vacuum test?

 

[Big Jim M]

AND tire size?
Bit Jim

 

[matt22]

I didn't do any of the compression test....I got 31 10.50 tires on it......

 

[Big Jim M]

Put some 26" tires back on it and it should run like it did when new..
Big Jim