Mickey Thompson Baja Claw TTC 37"

[GreatDaneHummer]

Guys,

I currently run Mickey Thompson Baja Claw TTC's 35x12.5x16 with a good amount of rubbing when new with my torsion bar lift and higher rear shackles. After only 10k miles the 20.5 tread is now 17.5 now that I am at 24k miles I am down to 16.2 with an over all tire height of 33.5". When new unmounted I had 34.5" just like they advertise. When mounted brand new I was down to 33.9" or so. Basically it seems like the Baja Claws run a little small exp. when you add a 7,000 lbs H3 fully loaded on them.

With all that said, I know guys run a full 35" tire like the Pitbull Rockers and have no issues but a little rubbing to be expected so would the 37x12.5x17 MT Baja claw TTC fit without the Rancho lift? Advertised height is 36.7" tall so I am guessing with weight it would be closer to 35" exact? Anyone?

 

[3Hummers]

Not without a lift. Also Pitbull tires are very heavy

 

[CaddyStrophic]

This doesn't look lifted (or even leveled) to me and it "fits" 37s. Notice the large amount of cutting involved. Correct me if I am wrong, please.

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[GreatDaneHummer]

So far what I have found out is that you for sure MUST change the front bumper to make more space, IE Thor Parts or ARB. You need to trim off the rear triangle part on the frame that many already do. You must use 4.5 backspacing or more to push the tires out a little. Yes you will get more rubbing and have more limited turning. A buddy of mine has the 37" tires I have been interested in and his 2500 measures them at 34.9" under weight.

 

[ZR2NC]

This doesn't look lifted (or even leveled) to me and it "fits" 37s. Notice the large amount of cutting involved. Correct me if I am wrong, please.

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It only has the 1" daystar body lift and the t-bars are currently at 23" from the center of the wheels to the bottom of the fenders(which would only be 22" with out the bl). Lots of trimming is involved in running 37's with minimal lift especially if you want to keep the cv angles low.

 

[rsc]

Here is one with the stock bumper, no trimming and no body lift. Not saying it is right.

Here is one on 37's, a 1" body lift, stock bumper and minimal trimming. This one was done right.

 

[rsc]

Too little backspacing will require more front fender cutting as the tire is pushed out into the fender more at full lock. If it ever stops raining here I'll have mine trimmed for the 37's I had mounted up.

 

[atvspeed4]

On our 06 we are running 1" inch BL, stock wheels and 37" super swamper irok ND. We trimmed the little triangle in the rear wheel well and have been fine. Only rubbing is swaybar like when you run 35s but we removed the sway bar for our application so all good now.

 

[rsc]

On the subject of fit, a buddy of mine with no lift or shackles and AT 315/75r16 ( "35's" ) ripped his rear fender liner out coming down hard off a ledge while flexed out. For most of your wheeling, that won't happen, but it could. The "37" will be AT LEAST 1" larger in radius, you need the 1" body lift unless you never flex the suspension. If your 35's and 37's are both 12.5" wide you will have the same to minimally more rubbing at full lock on the sway bar. With stock backspacing you do not need to trim into the fenders, only the liner at the front and back of the front wheel. The rear needs the sill triangle trimmed and maybe some wheel well liner behind the rear tire depending on your particular vehicle if you want to stuff them hard while moving.

 

[H322]

Mickey Thompson Baja Claw TTC 37"

I haven't heard much on the trimming the triangle piece in the rear. I would appreciate more info on this if someone doesn't mind thanks


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[rsc]

The rear piece is part of the pinch seam on the lower sill. It looks like it was done this way for ease of manufacture, not aesthetics or clearance. The picture shows what to cut, the tire is a 35 for reference. (You need to weld the seam closed and paint afterward. I know, common sense, right?)

 

[GreatDaneHummer]

With 37" tires and 3.7 liter baby puppy motor will this even let me get to 70 any more?

 

[atvspeed4]

With 37" tires and 3.7 liter baby puppy motor will this even let me get to 70 any more?

We have been running the 37s on our 06 with the 3.5L for around 10k miles so far. We are in a hilly area and have to travel at least 2 hrs to closest area to wheel. We really don't think it's that bad and in the winter pull a two place enclosed sled trailer. I never expected the h3 to be fast so I haven't been disappointed.

 

[rsc]

Its strange that the 3.5 is considered such a dog, but it does have more power right where you need it on the highway. Not a lot, but the curves are fatter between 2000-3000 rpm. The 5-speed gearbox also has a 5% lower OD ratio than the automatic (but the auto's 3rd is 1:1, as is the manual's 4th gear). A transmission cooler for the 4L60e should be a mandatory upgrade with 35" or bigger tires, especially in the south, and a PCM tune would be a very wise upgrade as well. There are a few other things that could bump power to help offset the power hit from the 37's like AFE dry filter, intake, header, exhaust, e-fan and ported throttle body matched with the PCM tune. You have removed that restrictive firewall coupler at the airbox, right?

 

[atvspeed4]

On this H3 (red 06) we haven't touched anything in engine compartment or exhaust other than a large remote transmission cooler to bypass internal cooler. We have over 140k miles on it so when the motor blows a supercharged 6.0L is going in

 

[GreatDaneHummer]

I went ahead and ordered the 37" Mickey Thompson Baja Claw TTC's. I have been very impressed with the 35" ones so this should only be better. A little trimming shouldn't hurt lol

 

[rsc]

What is the weight on those? I found the power hit on my 37" MT/R's with the I5 and 5 speed to feel like the I5/auto on 35's due to the lower final drive and peppier around town because of the better/more ratios. Here's mine before the BL and waiting on the slider's paint to dry.

 

[Babyjohn460]

Its strange that the 3.5 is considered such a dog, but it does have more power right where you need it on the highway. Not a lot, but the curves are fatter between 2000-3000 rpm. The 5-speed gearbox also has a 5% lower OD ratio than the automatic (but the auto's 3rd is 1:1, as is the manual's 4th gear). A transmission cooler for the 4L60e should be a mandatory upgrade with 35" or bigger tires, especially in the south, and a PCM tune would be a very wise upgrade as well. There are a few other things that could bump power to help offset the power hit from the 37's like AFE dry filter, intake, header, exhaust, e-fan and ported throttle body matched with the PCM tune. You have removed that restrictive firewall coupler at the airbox, right?

Which intake coupler are you talking about? This is the third time in as many days someone has brought up removing that. Would DEFINITELY like more flow from the stock intake as I'm not putting an aftermarket intake on. Had one on my Colorado and I hated the added noise during acceleration. Going to be swapping the filter for a higher flow soon as well. Any insite or pics of this intake restriction would be great! Thanks!

 

[amrg]

These pics are from the airdoc website (good intakes):



The small tube in this pic replaces the fender coupler



Shown on the left side in this pic.

This coupler acts as a restriction (depending on which model you have it may and may not need to be changed).

The airdoc site shows that the 2008 up models dont have the less restrictive coupler.

 

[GreatDaneHummer]

What is the weight on those? I found the power hit on my 37" MT/R's with the I5 and 5 speed to feel like the I5/auto on 35's due to the lower final drive and peppier around town because of the better/more ratios. Here's mine before the BL and waiting on the slider's paint to dry.

The 37x12.5x17 Mickey Thompson Baja Claw TTC's weight 82 lbs each and don't cost much more than the 35" ones I already have on. I have noticed they run very small though. At 20 PSI this weekend I was less than 30" overall. That is quite a reduction in ground clearance when wheeling. It takes 38 PSI to get them to 33.8" of height making the ride horrible of course. I figure with 37's they should come in around 35" at 30 PSI or so? The weight is right in line with PitBull Rockers that are in the 80's at 35". I have don't the chip tune, air intank and full MBRP exhaust but I am sure 37's will still suck the power down to nothing.

 

[GreatDaneHummer]

How much backspacing are you using with the 37" tires?

 

[rsc]

How much backspacing are you using with the 37" tires?

The 17" FJ rims are about 4 3/4" backspacing, 3/4" less than the H3. I couldn't do any less, it is pretty close on the right front (back of tire) although the left front has that extra 1/8" clearance it needs not to rub under compression (or a hard turn in reverse). I think 4.5" backspace would be too much cutting, and most of the wheels I was seeing were for 4.5" backspacing.

I wouldn't worry about size when the tires are aired down. All tires drop somewhat, the specified size is at rated pressure and unmounted. Add vehicle weight and drop air pressure and all tires will get "shorter". You should still be higher on 35's than 33's when aired down equally and the same for 35 vs 37.

 

[GreatDaneHummer]

4.5" backspacing just leaves you with options to run the Rancho lift kit or even solid axle swaps run a lot of 4.5" backspacing. How well did your truck turn and function before the body lift with 37" tires? Was it fine for most driving? How bad did it rub in the front before cutting? Besides cutting the rear triangle what exactly did you cut in the front?

 

[rsc]

Sorry, that rubbing was without the body lift. It's easier to find rubbing at full stuff before doing the BL. Careful with putting your money on a Rancho lift, they have stopped producing and supporting the lift as of last week. I think the reason for smaller backspace on an axle swap is because the H3 axles are much wider than normally encountered, hence the 5.5" of backspace.

 

[GreatDaneHummer]

With the body lift do you still have rubbing? Any thoughts on braking parts by running such big tires?