John
Chevytalk Moderator & "3rd Year" Gold Supporting Member
Posts: 7196

Age: 44
Loc: Montgomery, AL
Reg: 01-15-02
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04-23-12 03:54 PM - Post#2218367
Do the 3500 or 4500 require a hydraulic clutch? I'd like a 5-speed in my 85 but don't know what I'd be up against.
1979 2wd K5 Blazer, 350/TH350
1985 4x4 M1009 K5 Blazer, 6.2/TH400 |
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someotherguy
Moderator
Posts: 23394

Age: 43
Loc: Texas
Reg: 08-01-03
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04-24-12 01:32 AM - Post#2218538
In response to John
In the 88-98 trucks they were all hydraulic clutch; I don't think (but could be wrong!) that either were offered in any kind of mechanical clutch setup. Definitely not in our trucks. I don't know if other brands offered the 3500 but the 4500 of course was also used by Dodge, you could look at those, but wouldn't be surprised if they were hydraulic too. Nothing to fear about setting one up though, just rob the parts from a donor truck...
And pick the 4500. The 3500 doesn't stand up to even a V6...
Richard
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John
Chevytalk Moderator & "3rd Year" Gold Supporting Member
Posts: 7196

Age: 44
Loc: Montgomery, AL
Reg: 01-15-02
|
04-24-12 06:48 AM - Post#2218588
In response to someotherguy
I guess if the 88-98 clutch pedal assembly could be fabbed to fit my firewall would be the easiest route. As long as the fuse block isn't in the way...
1979 2wd K5 Blazer, 350/TH350
1985 4x4 M1009 K5 Blazer, 6.2/TH400 |
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someotherguy
Moderator
Posts: 23394

Age: 43
Loc: Texas
Reg: 08-01-03
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04-24-12 12:23 PM - Post#2218684
In response to John
The 88-94 (and maybe 95 too) would be the best bet as it simply bolts into a hole you can make with a hole saw and drill two holes for the bolts...the 96-up is a royal pain in the censored where the different layers of sheetmetal that make up the firewall have two slightly different sized holes in them to form a ledge, the master cylinder clocks in on top of the ledge, then locks into the bracket behind it. That gave me fits like you wouldn't believe trying to put all that 96-up stuff on the 94 cab. I made it work but it was a hack and I hated it.
In fact I took an example pic of the hole for someone to convince them...try making this on your own:

Richard
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John
Chevytalk Moderator & "3rd Year" Gold Supporting Member
Posts: 7196

Age: 44
Loc: Montgomery, AL
Reg: 01-15-02
|
04-24-12 04:17 PM - Post#2218743
In response to someotherguy
Richard, that info is gold. Thank you sir.
1979 2wd K5 Blazer, 350/TH350
1985 4x4 M1009 K5 Blazer, 6.2/TH400 |
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John
Chevytalk Moderator & "3rd Year" Gold Supporting Member
Posts: 7196

Age: 44
Loc: Montgomery, AL
Reg: 01-15-02
|
04-25-12 11:37 AM - Post#2218993
In response to John
Just to be sure, does the same pedal assembly fit both the tranny's?
1979 2wd K5 Blazer, 350/TH350
1985 4x4 M1009 K5 Blazer, 6.2/TH400 |
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John
Chevytalk Moderator & "3rd Year" Gold Supporting Member
Posts: 7196

Age: 44
Loc: Montgomery, AL
Reg: 01-15-02
|
04-26-12 05:38 PM - Post#2219480
In response to John
Apparently it bolts up to my NP208 without any input shaft changes or adapters. Looks like a serviceable 4500 isn't cheap but it should all bolt in once the pedal assembly is fitted.
1979 2wd K5 Blazer, 350/TH350
1985 4x4 M1009 K5 Blazer, 6.2/TH400 |
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someotherguy
Moderator
Posts: 23394

Age: 43
Loc: Texas
Reg: 08-01-03
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04-27-12 07:29 AM - Post#2219637
In response to John
John, not 100% sure on the pedal setup but maybe 99% sure. The pedals are most likely the same (again it will be the split between 88-95 and then the 96-up) though there may be a master cylinder difference between 3500 and 4500, wouldn't be surprised if they're the same though.
I used to sell known good 4500's for $500~$700 complete w/bellhousing, hydraulic setup, clutch, everything. They used to go for around $1000~1200 rebuilt but I think that price has gone up. Also keep in mind you'll spend about $100 in the correct fluid (Castrol Syntorq, GM part # 12346190) - don't be misled into using the wrong stuff in there as it's disastrous to the carbon fiber blocking rings. Now if it's been rebuilt with the more common aftermarket bronze pieces then I suppose your choice of lube brand of choice.
Richard
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