Bumper from a YJ to a CJ - JeepForum.com

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post #1 of 16 Old 10-03-2011, 01:52 PM Thread Starter
corvetteguy
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Bumper from a YJ to a CJ

How much different are the bumper mounts from a CJ to a YJ?

I have a front bar bumper from an 95, a guy called me wanting to buy it for his on his 82/83 CJ....is there any difference in the fit?

Will it bolt right on....thanks!

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post #2 of 16 Old 10-03-2011, 01:54 PM
BrandonJames
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cj7 should fit, I beleive, not cj5..
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post #3 of 16 Old 10-03-2011, 02:02 PM
mvbrady
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My 86 CJ is a little more narrow...about an inch or so on either side than a YJ,
he's gonna need to drill some new holes...pretty easy.
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post #4 of 16 Old 10-03-2011, 02:11 PM
Pathkiller
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Quote:
Originally Posted by BrandonJames View Post
cj7 should fit, I beleive, not cj5..
Wrong, a 76-83 CJ5 has identical frame dimensions to a 76-86 CJ7, the only difference is the length. Any bumper that fits a CJ7 also fits a 76+ CJ5. 55-75 are different.
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post #5 of 16 Old 10-03-2011, 02:12 PM
HurricaneRZA
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When I bought my bumper last week, it came for CJ/YJ/TJ.

For the CJ it has spacers and holes that are about 1inch offset from the YJ holes (for the narrower CJ)


If he drills a couple holes and slaps some washers in there it'll be good to go.

Quote:
Originally Posted by YoureverydayXJ View Post
This is the most metal thing I have ever heard.
Quote:
Originally Posted by doublins View Post
I always get people coming over and saying things like "I wish I knew how to do that," etc- but they don't realize- at some point I didn't know how to do it either- I had to figure it out.
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post #6 of 16 Old 10-03-2011, 02:18 PM
RobsCrawlin7
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Quote:
Originally Posted by HurricaneRZA View Post
When I bought my bumper last week, it came for CJ/YJ/TJ.

For the CJ it has spacers and holes that are about 1inch offset from the YJ holes (for the narrower CJ)


If he drills a couple holes and slaps some washers in there it'll be good to go.
100% accurate

'01 TJ 4.7/NV3550, 2" lift, 35's, locked.
'79 CJ7 stock, 304
'98 XJ sold
'79 CJ7 sold
'82 CJ7 parted
'89 MJ sold

SSG David Mejias, SSG Eric Vick, SGT William Bowling, SGT Robert McDowell
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post #7 of 16 Old 10-03-2011, 02:21 PM
lucdog
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The bolt holes are different between the two, the YJ being further apart. The front of the frame on a YJ is right at 0.0625" taller.
So the YJ bumper will fit on a CJ, if the mounting holes are redrilled.
When the bolts are tightend, the bumper will compress approximately the difference in frame height. Unless a small spacer is used.
Bumper length is the same.

Bill

1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7
1989 YJ the CJ to YJ.
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post #8 of 16 Old 10-03-2011, 03:03 PM
BESRK
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Quote:
Originally Posted by lucdog View Post
The bolt holes are different between the two, the YJ being further apart. The front of the frame on a YJ is right at 0.0625" taller.
So the YJ bumper will fit on a CJ, if the mounting holes are redrilled.
When the bolts are tightend, the bumper will compress approximately the difference in frame height. Unless a small spacer is used.
Bumper length is the same.

Bill
We have a winner!!

'80 CJ5 w/AMC360, T176, D44 w/Detroit 4.56, RE 4" YJ lift and 35s..


Lower 2

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post #9 of 16 Old 10-03-2011, 04:08 PM
jcalhoon84
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Quote:
Originally Posted by BESRK

We have a winner!!
Agreed!
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post #10 of 16 Old 10-03-2011, 08:31 PM
mopar408
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Quote:
he front of the frame on a YJ is right at 0.0625" taller.
Mr Anal here, but are we talking sixty thousandths of an inch or 5/8th of an inch.
I'll defer to BESRK, he should know.
.0625 will need a file, .625 will need a torch.

If it's good TO you, it's gotta be good FOR you....
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post #11 of 16 Old 10-03-2011, 08:44 PM
HurricaneRZA
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Quote:
Originally Posted by mopar408 View Post
Mr Anal here, but are we talking sixty thousandths of an inch or 5/8th of an inch.
I'll defer to BESRK, he should know.
.0625 will need a file, .625 will need a torch.
Not really, i guess if you're super anal about fitting (even though the washers go on the bottom). Sit tight I think I can take pics of the washer set I've got

EDIT:
Pics of said washer kit.

Didn't have a quarter, so for reference thats a AA battery.




Quote:
Originally Posted by YoureverydayXJ View Post
This is the most metal thing I have ever heard.
Quote:
Originally Posted by doublins View Post
I always get people coming over and saying things like "I wish I knew how to do that," etc- but they don't realize- at some point I didn't know how to do it either- I had to figure it out.

Last edited by HurricaneRZA; 10-03-2011 at 08:57 PM. Reason: Added pics.
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post #12 of 16 Old 10-03-2011, 10:55 PM
lucdog
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Quote:
Originally Posted by mopar408 View Post
Mr Anal here, but are we talking sixty thousandths of an inch or 5/8th of an inch.
I'll defer to BESRK, he should know.
.0625 will need a file, .625 will need a torch.
.0625" or 1/16" thats a lot of file work on the top of the frame.

1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7
1989 YJ the CJ to YJ.
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post #13 of 16 Old 10-04-2011, 06:44 AM
HurricaneRZA
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Wait hang on. Why would you cut/torch/grind? The bumper is taller than the frame. The frame remains untouched. This is a YJ bumper to a CJ, isn't it?

Sent from my Blaster while searching for the Rebels.

Quote:
Originally Posted by YoureverydayXJ View Post
This is the most metal thing I have ever heard.
Quote:
Originally Posted by doublins View Post
I always get people coming over and saying things like "I wish I knew how to do that," etc- but they don't realize- at some point I didn't know how to do it either- I had to figure it out.
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post #14 of 16 Old 10-04-2011, 07:22 AM
lucdog
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I have no idea why mopar said that, I also thought .0625" was clear.

Bill

1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7
1989 YJ the CJ to YJ.
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post #15 of 16 Old 10-04-2011, 07:56 AM
CSP
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Quote:
Originally Posted by mopar408 View Post
.0625 will need a file, .625 will need a torch.
No, one will need a different spacer than the other. The YJ bumper mounted on a CJ frame has a gap that needs to be filled.
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