Frame stiffiners
12-08-2009, 08:59 PM
#3
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Year: 1987 MJ, 1998 XJ, 1973 J2000, 89 waggy
Model: Comanche (MJ)
Engine: 4.0L H.O
what are you planning that requires frame stiffners... these jeep uni-bodies are pretty strong as it is
12-08-2009, 09:21 PM
#4
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Model: Cherokee
gong to 4 link the rear and 3 link the front with 8 lug D44 front high steer and D60 rear with coils with 35's-37's. So figured id brace the frame up while im doing the link's.
12-09-2009, 03:24 AM
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Pretty strong as it is? BAHAHAHAH. the unibody frame has a reputation as a "weak link" in the cherokee. If you jack up the weight of one corner of the vehicle on the unibody it will actually bend in slightly. For anything beyond a daily driver I would suggest 1/8" or thicker plate steel to stiffen the frame. there's a reason that any decent bumper for a cherokee has at least 6 bolt holes per side and is normally made out of 3/16 or better steel.
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12-09-2009, 02:56 PM
#8
I'd be hesitant to use c-channel. Keep in mind that "C" is thicker in the corners and it doesn't like to bend. Box tube on the other hand is the same thickness everywhere and far easier to form into the correct shape.
12-09-2009, 05:13 PM
#11
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Year: 1987 MJ, 1998 XJ, 1973 J2000, 89 waggy
Model: Comanche (MJ)
Engine: 4.0L H.O
Pretty strong as it is? BAHAHAHAH. the unibody frame has a reputation as a "weak link" in the cherokee. If you jack up the weight of one corner of the vehicle on the unibody it will actually bend in slightly. For anything beyond a daily driver I would suggest 1/8" or thicker plate steel to stiffen the frame. there's a reason that any decent bumper for a cherokee has at least 6 bolt holes per side and is normally made out of 3/16 or better steel.
i agree that they flex but i have seen many of my fellow jeepers around me... and all over the internet jumps these things high and far and had no frame issues what so ever...... sure after some rust and ageing they can fracture but out of the 9 jeeps i've owned.... only one eventually had a braked frame (because of a lot of rust) and i've been wheeling for 3 years now and i've maxed my suspension out plenty of times and never had an issue at all with my frame.... so are you soooooooooooo sure you really know what your talking about??
12-09-2009, 05:21 PM
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i agree that they flex but i have seen many of my fellow jeepers around me... and all over the internet jumps these things high and far and had no frame issues what so ever...... sure after some rust and ageing they can fracture but out of the 9 jeeps i've owned.... only one eventually had a braked frame (because of a lot of rust) and i've been wheeling for 3 years now and i've maxed my suspension out plenty of times and never had an issue at all with my frame.... so are you soooooooooooo sure you really know what your talking about??
12-09-2009, 05:24 PM
#13
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Year: 1987 MJ, 1998 XJ, 1973 J2000, 89 waggy
Model: Comanche (MJ)
Engine: 4.0L H.O
well duh that frame mounts need to be reinforced when you using an aftermarket/offroad bumper.. its just the way you made is sound was that jeep frames are weak period.. like we should completely reinforce everything on the frame just to leave the pavement.... or else they will break...
12-09-2009, 05:28 PM
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well duh that frame mounts need to be reinforced when you using an aftermarket/offroad bumper.. its just the way you made is sound was that jeep frames are weak period.. like we should completely reinforce everything on the frame just to leave the pavement.... or else they will break...
12-09-2009, 05:33 PM
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Year: 1987 MJ, 1998 XJ, 1973 J2000, 89 waggy
Model: Comanche (MJ)
Engine: 4.0L H.O
huh... i've jacked mine up many times and never had that happen.... from all angles too.....
i'll agree that if your doing some serious upgrading and hard offroading then yea... all contact points (conrol arm mounts, bumpers, rockers, shock locations) could use reinforcment but i haven't seen the need to reinforce nearly the whole frame rail.. though i wouldn't agree with not doing that either...
i guess it could all depend on the elements your chosing to wheel on.... rocks and hard jagged surfaces well then hell yes you need some reinforcment... but like mud and wilderness trails... no soo much
i'll agree that if your doing some serious upgrading and hard offroading then yea... all contact points (conrol arm mounts, bumpers, rockers, shock locations) could use reinforcment but i haven't seen the need to reinforce nearly the whole frame rail.. though i wouldn't agree with not doing that either...
i guess it could all depend on the elements your chosing to wheel on.... rocks and hard jagged surfaces well then hell yes you need some reinforcment... but like mud and wilderness trails... no soo much
