Have Questions about bravada mod
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Beginning Member
Joined: Mar 2015
Posts: 47
Have Questions about bravada mod
what I should be looking for in the junkyards. I have a 96 gmc jimmy. I will be doing this next spring as I will be pulling the engine to replace the oil pan gasket and doing other few repairs while I have it out. I would do it now but I don't have a garage to work in and its getting cold out lol.
Also one more question is there any threads showing how to do the mod. I've used the search function and haven't came up with anything.
Also one more question is there any threads showing how to do the mod. I've used the search function and haven't came up with anything.
Junior Member
Joined: Oct 2015
Posts: 322
From: Louisiana
Your question kinda has me confused..Are you gonna work on a jimmy or bravada?The best thing to do is go to your nearest auto zone, pep boys. o reily`s and buy the Either the (haynes or chilton) repair manual.That way you know you won`t go wrong.
HAHA! Haynes? Chilton? If you want bonfire material! If you want the defacto best, search ebay for the GM manuals (helminc.com). You won't find the factory manuals on Summit though... Just the other junk manuals.
As far as the confusing part, the "Bravada Mod" is swapping out the failure prone passenger side extension tube, shaft, disconnect mechanism from a standard 4wd model Blazer/Jimmy with the solid (non-disconnect-able) passenger side extension shaft & corresponding tube.
To OP, you will need the passenger side extension tube & shaft from a Bravada or AWD Blazer (they exist) that has the same CV shaft attachment method as yours (i.e. splined or bolted) at the inboard side.
This came up in the similar threads table at the bottom:
As far as the confusing part, the "Bravada Mod" is swapping out the failure prone passenger side extension tube, shaft, disconnect mechanism from a standard 4wd model Blazer/Jimmy with the solid (non-disconnect-able) passenger side extension shaft & corresponding tube.
To OP, you will need the passenger side extension tube & shaft from a Bravada or AWD Blazer (they exist) that has the same CV shaft attachment method as yours (i.e. splined or bolted) at the inboard side.
This came up in the similar threads table at the bottom:
Do you have the 233 (3 button) or 236 (4 button auto4wd) transfer case? If you have the 236, the front driveshaft is already constantly spinning and there will be no difference with the bravada axle. There are mixed reports about it affecting the mileage on a truck with the 233 case. Some say it can make it slightly worse but there are plenty of people who've said they had no negative effects.
As an experiment, you could pull the actuator cable and clamp it in place to keep the front axle engaged and see if there's any noticeable difference that way. It's effectively the same thing as the bravada shaft. In the long run, the clamp is weaker than doing the actual mod because you'd still have the two piece axle/collar assembly. I plan on doing it when I replace my CV shafts
Here's a good link Cons of the bravada shaft and tube? - Zr2USA.com
As an experiment, you could pull the actuator cable and clamp it in place to keep the front axle engaged and see if there's any noticeable difference that way. It's effectively the same thing as the bravada shaft. In the long run, the clamp is weaker than doing the actual mod because you'd still have the two piece axle/collar assembly. I plan on doing it when I replace my CV shafts
Here's a good link Cons of the bravada shaft and tube? - Zr2USA.com
Thread Starter
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Beginning Member
Joined: Mar 2015
Posts: 47
yea thanks for that post it really helped. I have the factory manuals plus the haynes. I just didnt understand the mod. btw can you use the ones in awd vans also.
yea im working on my $400 96 gmc jimmy. I will be working on it next year ripping into the motor and fixing the tranny pan leak right someone used a **** ton of rtv on it. I will be making a thread on it with pictures of what I do to it.
yea im working on my $400 96 gmc jimmy. I will be working on it next year ripping into the motor and fixing the tranny pan leak right someone used a **** ton of rtv on it. I will be making a thread on it with pictures of what I do to it.
Last edited by bulldog565; Nov 21, 2015 at 01:14 AM.
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