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Old 07-09-2014, 09:58 AM   #1
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Axle swap or gear ratio change? Am i missing something here??

I have started to look into regearing my 93 yj w 4.1 ratio,,, currently have the stock d30 ad d35,,, was quoted 2000$ for parts and label for the ratio change.... Also looked at complete ford 8.8 rear assembly with the 4.1 for 500$ ready to bolt on with disc breaks.... This seems like a no brainer to me as the 8.8 would be a big upgrade in axle as well... Am I missing something here??? Thanks

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Old 07-09-2014, 10:13 AM   #2
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I have started to look into regearing my 93 yj w 4.1 ratio,,, currently have the stock d30 ad d35,,, was quoted 2000$ for parts and label for the ratio change.... Also looked at complete ford 8.8 rear assembly with the 4.1 for 500$ ready to bolt on with disc breaks.... This seems like a no brainer to me as the 8.8 would be a big upgrade in axle as well... Am I missing something here??? Thanks
$2000 is ridiculous. Parts should be around $500 total and labor should be about $250 an axle tops. I hate mechanics with a passion for charging as much as they do for gear changes. I did my own axles in about 1-2 hours a piece and all the tools needed to do the job cost me around $250. Takes a ton of patience but can be done yourself

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1989 Base YJ, 4.2l, Borla exhaust, offy intake, Motorcraft 2150 carb, CRT HEI ignition, ax15, np231 JB conversions SYE, D30 ARB & Ford 8.8 ARB 4.56, 35x12.5r15 Goodyear MTR's, bds 3.5" springs, 1" body lift, and 1/2" Boom Shackles.
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Old 07-09-2014, 10:36 AM   #3
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OP is your engine and drivetrain stock?
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Old 07-09-2014, 10:44 AM   #4
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If you haven't made up your mind for what ratio you are changing to check out this chart. Yellow if for good highway cruising green for daily around town driving and red for good off road low end torque.
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Old 07-09-2014, 10:45 AM   #5
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If you haven't made up your mind for what ratio you are changing to check out this chart. Yellow if for good highway cruising green for daily around town driving and red for good off road low end torque.
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Old 07-09-2014, 12:43 PM   #6
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$2000 is ridiculous. Parts should be around $500 total and labor should be about $250 an axle tops. I hate mechanics with a passion for charging as much as they do for gear changes. I did my own axles in about 1-2 hours a piece and all the tools needed to do the job cost me around $250. Takes a ton of patience but can be done yourself
DIY Gear Set up: Pirate4x4.Com - The largest off roading and 4x4 website in the world.
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1989 Base YJ, 4.2l, Borla exhaust, offy intake, Motorcraft 2150 carb, CRT HEI ignition, ax15, np231 JB conversions SYE, D30 ARB & Ford 8.8 ARB 4.56, 35x12.5r15 Goodyear MTR's, bds 3.5" springs, 1" body lift, and 1/2" Boom Shackles.
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Old 07-09-2014, 01:34 PM   #7
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Yea I expected that it would be high,, but everyone on here said to expect to pay 1500$ for the ratio change,,, still doesn't make sense...
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Old 07-09-2014, 02:34 PM   #8
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The new gears, depending on the make, varies in price from $200-$500 per axle. Then you need a master rebuild kit per axle which is around $125-$150, to get the new bearings and seals. So $325-$650 just for parts. And that isn't even any incidental parts or gear oil. The price just keep climbing.

As far as an 8.8 is concerned, there isn't one that just drops right into a YJ unless it was in a previous YJ and then you have to wonder what kind of abuse it took in that Jeep. Although $500 is a good price since I have over $1500 into mine.
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Old 07-09-2014, 02:56 PM   #9
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Yea it was previously in a yj ... Apparently ready to bolt in
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Old 07-09-2014, 03:39 PM   #10
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The new gears, depending on the make, varies in price from $200-$500 per axle. Then you need a master rebuild kit per axle which is around $125-$150, to get the new bearings and seals. So $325-$650 just for parts. And that isn't even any incidental parts or gear oil. The price just keep climbing.

As far as an 8.8 is concerned, there isn't one that just drops right into a YJ unless it was in a previous YJ and then you have to wonder what kind of abuse it took in that Jeep. Although $500 is a good price since I have over $1500 into mine.
I get my gears and master kits from this website Gear & Install Packages - Jeep - 1987-1996 YJ & XJ - Ron's Machining Service I've also ran into no problems running 35's with lockers on these gears and have even done rubicon twice since the gear swap. $240 for the front dana 30 and $230 for the 8.8 for gears and master install kits ain't bad. My ARB's were the real money eater but I'm happy, I had to buy a case spreader to install the ARB's and the lockers themselves were quite expensive, plus the chromo shafts so I didn't feel like paying some moronic mechanic to install for the price I could do other mods. Gear changes really are easy with setup bearings and the tools, and I just don't see how mechanics could charge so much

As for the OP, the $2000 price you were quoted should also include the carriers for both of your axles, but that's still too much just for a gear change IMHO
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Old 07-09-2014, 07:26 PM   #11
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Here's the 8.8 that I'm thinking about http://cosprings.craigslist.org/ptd/4559169648.html
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Old 07-09-2014, 07:48 PM   #12
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Here's the 8.8 that I'm thinking about http://cosprings.craigslist.org/ptd/4559169648.html
That's a great deal for an already setup 8.8, pinion angle might be a little off though.
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Old 07-09-2014, 08:33 PM   #13
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I too am doing an 8.8 swap. Found one on Craig's list for $150 farm fresh. Have it apart and cleaned up-everything in good shape, so they can be found. 4.10 gears running 33" tires. I've seen several posts on this subject some good, some iffy. I've seen where guys said they didn't have to do any bracket relocation for shocks where others have. I'm looking forward to see what it gives me over the stock Dana 35. I also found a Dana 30 from a 4 cyl YJ stick that is stock 4.10 for the front. 89' YJ with fresh 258 header, intake, etc...
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Old 07-09-2014, 08:37 PM   #14
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Here's the 8.8 that I'm thinking about http://cosprings.craigslist.org/ptd/4559169648.html
The local U-pick yards here in South Florida sells the complete 8.8 out of Explorers for $150.00 so that's not bad deal if its ready to bolt in.
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Old 07-11-2014, 12:04 PM   #15
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I know this post might be slightly out dated, but I'd go with the Ford 8.8, which I did. I didn't wanna get someplace and have my butt explode.....I mean my rear end.....I mean my rear differential.

When it comes to price.......that's a hard one. If you feel somewhat confident in your abilities, then you do the work. If not, then pay someone to do it for you. You should feel no shame in parting out work you don't feel comfortable doing.

It took me a week (at Rob speed), but I prepped the axle, learned to weld perches, tabs, tubes, etc. I put in all new bearings, seals, e-locker, re-geared, etc. What gave me grief, was that darn pinion crush sleeve.....ya, I went thru 5 of them before not over torquing them. When they mean just turn a 1/16 to 1/32 of a turn.....they really mean it.

Anyways, that's my .02
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Old 07-11-2014, 11:07 PM   #16
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