After trying to adjust the position of the OBA system a
few times to tighten up the belt correctly I decided that it was time
to get rid of the stock air box. I needed to find something that would
fit on the stock air tube, and also have a shield around it. I did find
some cone filter in the stores, but they were all exposed elements. Well
thanks to my neighbor and his little car (we figured it out that his roof
was within the ramp limit of my jeeps articulation, though he wasn’t impressed
by that fact), I found a suitable air filter for it. His was by Ractive,
but I found a similar one at Pepboys by AMP. I may eventually see about
getting one of the cool shields from Ractive, but for now I’ll live with
the clear one.
2.
Loosen the hose clamp holding the air tube to the air box. This
requires a flat tip screwdriver.
3.
Pull air tube off air box top and unclamp top of air box. Set aside.
4.
Remove air filter
5.
Remove 3 bolts holding the air box to fender. This will require
a 5/16” socket, extension and a 10mm Combo wrench for the nuts underneath.
6.
Remove bottom of air box. (Recommend putting the box back together
so you don’t lose any parts)
7.
Disconnect the crank case vent line from the air tube.
8.
Loosen the hose clamp holding the air tube to the throttle body.
This requires a flat tip screwdriver. Remove the air tube.
9.
Pull air tube off throttle body.
10.
Cut the flexible section off of the air tube with a hacksaw. (put
this section with the air box) I would recommend cutting it about
½” back from the edge of the flexible section if for some
reason you want to later reinstall the air box, you can put a rubber
coupling on this section to join it with the stock air tube.
11.
Insert new cone filter over end of air tube and tighten hose clamp.
This requires a flat tip screwdriver.
12.
Position air tube back onto throttle body and tighten hose clamp.
This requires a flat tip screwdriver.
13.
Connect crank case vent line onto air tube.
14. The tube is ridged enough that it supports the weight of the
filter.
Driving impressions: At idle and low speed there is a definite
whistle under the hood. The one thing I noticed is at 35mph in 5th gear
I would get an engine lug before, but now it’s all but gone away. Yes,
I can run 35mph, 5th gear, stock 4.11’s, on 35’s now.
